diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CppRestClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CppRestClientCodegen.java
index db8d1477c263..b93ee0d6c9ee 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CppRestClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/CppRestClientCodegen.java
@@ -179,8 +179,10 @@ public class CppRestClientCodegen extends AbstractCppCodegen {
 
         additionalProperties.put("modelNamespaceDeclarations", modelPackage.split("\\."));
         additionalProperties.put("modelNamespace", modelPackage.replaceAll("\\.", "::"));
+        additionalProperties.put("modelHeaderGuardPrefix", modelPackage.replaceAll("\\.", "_").toUpperCase());
         additionalProperties.put("apiNamespaceDeclarations", apiPackage.split("\\."));
         additionalProperties.put("apiNamespace", apiPackage.replaceAll("\\.", "::"));
+        additionalProperties.put("apiHeaderGuardPrefix", apiPackage.replaceAll("\\.", "_").toUpperCase());
         additionalProperties.put("declspec", declspec);
         additionalProperties.put("defaultInclude", defaultInclude);
     }
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/api-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/api-header.mustache
index 94fc2cc9517c..4299c808378e 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/api-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/api-header.mustache
@@ -5,8 +5,8 @@
  * {{description}}
  */
 
-#ifndef {{classname}}_H_
-#define {{classname}}_H_
+#ifndef {{apiHeaderGuardPrefix}}_{{classname}}_H_
+#define {{apiHeaderGuardPrefix}}_{{classname}}_H_
 
 {{{defaultInclude}}}
 #include "ApiClient.h"
@@ -44,6 +44,6 @@ protected:
 }
 {{/apiNamespaceDeclarations}}
 
-#endif /* {{classname}}_H_ */
+#endif /* {{apiHeaderGuardPrefix}}_{{classname}}_H_ */
 
 {{/operations}}
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/apiclient-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/apiclient-header.mustache
index cdaf9eb7ebe1..72b2c53671b8 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/apiclient-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/apiclient-header.mustache
@@ -5,8 +5,8 @@
  * This is an API client responsible for stating the HTTP calls
  */
 
-#ifndef ApiClient_H_
-#define ApiClient_H_
+#ifndef {{apiHeaderGuardPrefix}}_ApiClient_H_
+#define {{apiHeaderGuardPrefix}}_ApiClient_H_
 
 {{{defaultInclude}}}
 #include "ApiConfiguration.h"
@@ -75,4 +75,4 @@ protected:
 }
 {{/apiNamespaceDeclarations}}
 
-#endif /* ApiClient_H_ */
+#endif /* {{apiHeaderGuardPrefix}}_ApiClient_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/apiconfiguration-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/apiconfiguration-header.mustache
index c554fb21bfc5..35375760b7a0 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/apiconfiguration-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/apiconfiguration-header.mustache
@@ -5,8 +5,8 @@
  * This class represents a single item of a multipart-formdata request.
  */
 
-#ifndef ApiConfiguration_H_
-#define ApiConfiguration_H_
+#ifndef {{apiHeaderGuardPrefix}}_ApiConfiguration_H_
+#define {{apiHeaderGuardPrefix}}_ApiConfiguration_H_
 
 {{{defaultInclude}}}
 
@@ -49,4 +49,4 @@ protected:
 {{#apiNamespaceDeclarations}}
 }
 {{/apiNamespaceDeclarations}}
-#endif /* ApiConfiguration_H_ */
+#endif /* {{apiHeaderGuardPrefix}}_ApiConfiguration_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/apiexception-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/apiexception-header.mustache
index cc01d446ddf0..6a842d64ac98 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/apiexception-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/apiexception-header.mustache
@@ -5,8 +5,8 @@
  * This is the exception being thrown in case the api call was not successful
  */
 
-#ifndef ApiException_H_
-#define ApiException_H_
+#ifndef {{apiHeaderGuardPrefix}}_ApiException_H_
+#define {{apiHeaderGuardPrefix}}_ApiException_H_
 
 {{{defaultInclude}}}
 
@@ -46,4 +46,4 @@ protected:
 }
 {{/apiNamespaceDeclarations}}
 
-#endif /* ApiBase_H_ */
+#endif /* {{apiHeaderGuardPrefix}}_ApiBase_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/httpcontent-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/httpcontent-header.mustache
index 004971cf7f64..59cf42ae8c08 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/httpcontent-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/httpcontent-header.mustache
@@ -5,8 +5,8 @@
  * This class represents a single item of a multipart-formdata request.
  */
 
-#ifndef HttpContent_H_
-#define HttpContent_H_
+#ifndef {{modelHeaderGuardPrefix}}_HttpContent_H_
+#define {{modelHeaderGuardPrefix}}_HttpContent_H_
 
 {{{defaultInclude}}}
 
@@ -54,4 +54,4 @@ protected:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* HttpContent_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_HttpContent_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/ihttpbody-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/ihttpbody-header.mustache
index 76e5f211e86e..e9c77b263ebb 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/ihttpbody-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/ihttpbody-header.mustache
@@ -5,8 +5,8 @@
  * This is the interface for contents that can be sent to a remote HTTP server.
  */
 
-#ifndef IHttpBody_H_
-#define IHttpBody_H_
+#ifndef {{modelHeaderGuardPrefix}}_IHttpBody_H_
+#define {{modelHeaderGuardPrefix}}_IHttpBody_H_
 
 {{{defaultInclude}}}
 #include <iostream>
@@ -27,4 +27,4 @@ public:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* IHttpBody_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_IHttpBody_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/jsonbody-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/jsonbody-header.mustache
index 4face5a0dd6b..312ebb0dab4b 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/jsonbody-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/jsonbody-header.mustache
@@ -5,8 +5,8 @@
  * This is a JSON http body which can be submitted via http
  */
 
-#ifndef JsonBody_H_
-#define JsonBody_H_
+#ifndef {{modelHeaderGuardPrefix}}_JsonBody_H_
+#define {{modelHeaderGuardPrefix}}_JsonBody_H_
 
 {{{defaultInclude}}}
 #include "IHttpBody.h"
@@ -34,4 +34,4 @@ protected:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* JsonBody_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_JsonBody_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/model-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/model-header.mustache
index d15f49a2ad64..a1f265e23c7d 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/model-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/model-header.mustache
@@ -5,8 +5,8 @@
  * {{description}}
  */
 
-#ifndef {{classname}}_H_
-#define {{classname}}_H_
+#ifndef {{modelHeaderGuardPrefix}}_{{classname}}_H_
+#define {{modelHeaderGuardPrefix}}_{{classname}}_H_
 
 {{^parent}}
 {{{defaultInclude}}}
@@ -72,6 +72,6 @@ protected:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* {{classname}}_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_{{classname}}_H_ */
 {{/model}}
 {{/models}}
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/modelbase-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/modelbase-header.mustache
index f11717e620c7..909aa0520b38 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/modelbase-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/modelbase-header.mustache
@@ -5,8 +5,8 @@
  * This is the base class for all model classes
  */
 
-#ifndef ModelBase_H_
-#define ModelBase_H_
+#ifndef {{modelHeaderGuardPrefix}}_ModelBase_H_
+#define {{modelHeaderGuardPrefix}}_ModelBase_H_
 
 {{{defaultInclude}}}
 #include "HttpContent.h"
@@ -77,4 +77,4 @@ public:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* ModelBase_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_ModelBase_H_ */
diff --git a/modules/swagger-codegen/src/main/resources/cpprest/multipart-header.mustache b/modules/swagger-codegen/src/main/resources/cpprest/multipart-header.mustache
index 917b8cf3cc5a..17dba42a34ae 100644
--- a/modules/swagger-codegen/src/main/resources/cpprest/multipart-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/cpprest/multipart-header.mustache
@@ -5,8 +5,8 @@
  * This class represents a container for building a application/x-multipart-formdata requests.
  */
 
-#ifndef MultipartFormData_H_
-#define MultipartFormData_H_
+#ifndef {{modelHeaderGuardPrefix}}_MultipartFormData_H_
+#define {{modelHeaderGuardPrefix}}_MultipartFormData_H_
 
 {{{defaultInclude}}}
 #include "IHttpBody.h"
@@ -47,4 +47,4 @@ protected:
 }
 {{/modelNamespaceDeclarations}}
 
-#endif /* MultipartFormData_H_ */
+#endif /* {{modelHeaderGuardPrefix}}_MultipartFormData_H_ */
diff --git a/samples/client/petstore/cpprest/ApiClient.h b/samples/client/petstore/cpprest/ApiClient.h
index 770ccbb8e5d0..4b6877e04b3a 100644
--- a/samples/client/petstore/cpprest/ApiClient.h
+++ b/samples/client/petstore/cpprest/ApiClient.h
@@ -16,8 +16,8 @@
  * This is an API client responsible for stating the HTTP calls
  */
 
-#ifndef ApiClient_H_
-#define ApiClient_H_
+#ifndef IO_SWAGGER_CLIENT_API_ApiClient_H_
+#define IO_SWAGGER_CLIENT_API_ApiClient_H_
 
 
 #include "ApiConfiguration.h"
@@ -88,4 +88,4 @@ protected:
 }
 }
 
-#endif /* ApiClient_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_ApiClient_H_ */
diff --git a/samples/client/petstore/cpprest/ApiConfiguration.h b/samples/client/petstore/cpprest/ApiConfiguration.h
index f7834f841c99..d5d22d8fb66d 100644
--- a/samples/client/petstore/cpprest/ApiConfiguration.h
+++ b/samples/client/petstore/cpprest/ApiConfiguration.h
@@ -16,8 +16,8 @@
  * This class represents a single item of a multipart-formdata request.
  */
 
-#ifndef ApiConfiguration_H_
-#define ApiConfiguration_H_
+#ifndef IO_SWAGGER_CLIENT_API_ApiConfiguration_H_
+#define IO_SWAGGER_CLIENT_API_ApiConfiguration_H_
 
 
 
@@ -62,4 +62,4 @@ protected:
 }
 }
 }
-#endif /* ApiConfiguration_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_ApiConfiguration_H_ */
diff --git a/samples/client/petstore/cpprest/ApiException.h b/samples/client/petstore/cpprest/ApiException.h
index fe16971e5d50..b5dcdadb87c9 100644
--- a/samples/client/petstore/cpprest/ApiException.h
+++ b/samples/client/petstore/cpprest/ApiException.h
@@ -16,8 +16,8 @@
  * This is the exception being thrown in case the api call was not successful
  */
 
-#ifndef ApiException_H_
-#define ApiException_H_
+#ifndef IO_SWAGGER_CLIENT_API_ApiException_H_
+#define IO_SWAGGER_CLIENT_API_ApiException_H_
 
 
 
@@ -59,4 +59,4 @@ protected:
 }
 }
 
-#endif /* ApiBase_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_ApiBase_H_ */
diff --git a/samples/client/petstore/cpprest/HttpContent.h b/samples/client/petstore/cpprest/HttpContent.h
index 908f83bedcea..dcbd4868e842 100644
--- a/samples/client/petstore/cpprest/HttpContent.h
+++ b/samples/client/petstore/cpprest/HttpContent.h
@@ -16,8 +16,8 @@
  * This class represents a single item of a multipart-formdata request.
  */
 
-#ifndef HttpContent_H_
-#define HttpContent_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_HttpContent_H_
+#define IO_SWAGGER_CLIENT_MODEL_HttpContent_H_
 
 
 
@@ -67,4 +67,4 @@ protected:
 }
 }
 
-#endif /* HttpContent_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_HttpContent_H_ */
diff --git a/samples/client/petstore/cpprest/IHttpBody.h b/samples/client/petstore/cpprest/IHttpBody.h
index 1f3ba2ae430a..6d2a61bae3a7 100644
--- a/samples/client/petstore/cpprest/IHttpBody.h
+++ b/samples/client/petstore/cpprest/IHttpBody.h
@@ -16,8 +16,8 @@
  * This is the interface for contents that can be sent to a remote HTTP server.
  */
 
-#ifndef IHttpBody_H_
-#define IHttpBody_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_IHttpBody_H_
+#define IO_SWAGGER_CLIENT_MODEL_IHttpBody_H_
 
 
 #include <iostream>
@@ -40,4 +40,4 @@ public:
 }
 }
 
-#endif /* IHttpBody_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_IHttpBody_H_ */
diff --git a/samples/client/petstore/cpprest/JsonBody.h b/samples/client/petstore/cpprest/JsonBody.h
index 07e356c2174e..a8960d94ad83 100644
--- a/samples/client/petstore/cpprest/JsonBody.h
+++ b/samples/client/petstore/cpprest/JsonBody.h
@@ -16,8 +16,8 @@
  * This is a JSON http body which can be submitted via http
  */
 
-#ifndef JsonBody_H_
-#define JsonBody_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_JsonBody_H_
+#define IO_SWAGGER_CLIENT_MODEL_JsonBody_H_
 
 
 #include "IHttpBody.h"
@@ -47,4 +47,4 @@ protected:
 }
 }
 
-#endif /* JsonBody_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_JsonBody_H_ */
diff --git a/samples/client/petstore/cpprest/ModelBase.h b/samples/client/petstore/cpprest/ModelBase.h
index 2593fc9a8559..0c13101ef576 100644
--- a/samples/client/petstore/cpprest/ModelBase.h
+++ b/samples/client/petstore/cpprest/ModelBase.h
@@ -16,8 +16,8 @@
  * This is the base class for all model classes
  */
 
-#ifndef ModelBase_H_
-#define ModelBase_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_ModelBase_H_
+#define IO_SWAGGER_CLIENT_MODEL_ModelBase_H_
 
 
 #include "HttpContent.h"
@@ -90,4 +90,4 @@ public:
 }
 }
 
-#endif /* ModelBase_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_ModelBase_H_ */
diff --git a/samples/client/petstore/cpprest/MultipartFormData.h b/samples/client/petstore/cpprest/MultipartFormData.h
index 1fabb33cb69c..6a259f43cbcb 100644
--- a/samples/client/petstore/cpprest/MultipartFormData.h
+++ b/samples/client/petstore/cpprest/MultipartFormData.h
@@ -16,8 +16,8 @@
  * This class represents a container for building a application/x-multipart-formdata requests.
  */
 
-#ifndef MultipartFormData_H_
-#define MultipartFormData_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_MultipartFormData_H_
+#define IO_SWAGGER_CLIENT_MODEL_MultipartFormData_H_
 
 
 #include "IHttpBody.h"
@@ -60,4 +60,4 @@ protected:
 }
 }
 
-#endif /* MultipartFormData_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_MultipartFormData_H_ */
diff --git a/samples/client/petstore/cpprest/api/PetApi.h b/samples/client/petstore/cpprest/api/PetApi.h
index 62dab57218b9..f76d7f93e2cf 100644
--- a/samples/client/petstore/cpprest/api/PetApi.h
+++ b/samples/client/petstore/cpprest/api/PetApi.h
@@ -16,8 +16,8 @@
  * 
  */
 
-#ifndef PetApi_H_
-#define PetApi_H_
+#ifndef IO_SWAGGER_CLIENT_API_PetApi_H_
+#define IO_SWAGGER_CLIENT_API_PetApi_H_
 
 
 #include "ApiClient.h"
@@ -113,5 +113,5 @@ protected:
 }
 }
 
-#endif /* PetApi_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_PetApi_H_ */
 
diff --git a/samples/client/petstore/cpprest/api/StoreApi.h b/samples/client/petstore/cpprest/api/StoreApi.h
index 7962595aaa0b..1f283e34a335 100644
--- a/samples/client/petstore/cpprest/api/StoreApi.h
+++ b/samples/client/petstore/cpprest/api/StoreApi.h
@@ -16,8 +16,8 @@
  * 
  */
 
-#ifndef StoreApi_H_
-#define StoreApi_H_
+#ifndef IO_SWAGGER_CLIENT_API_StoreApi_H_
+#define IO_SWAGGER_CLIENT_API_StoreApi_H_
 
 
 #include "ApiClient.h"
@@ -80,5 +80,5 @@ protected:
 }
 }
 
-#endif /* StoreApi_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_StoreApi_H_ */
 
diff --git a/samples/client/petstore/cpprest/api/UserApi.h b/samples/client/petstore/cpprest/api/UserApi.h
index 92d720c6a004..4b694b8626b4 100644
--- a/samples/client/petstore/cpprest/api/UserApi.h
+++ b/samples/client/petstore/cpprest/api/UserApi.h
@@ -16,8 +16,8 @@
  * 
  */
 
-#ifndef UserApi_H_
-#define UserApi_H_
+#ifndef IO_SWAGGER_CLIENT_API_UserApi_H_
+#define IO_SWAGGER_CLIENT_API_UserApi_H_
 
 
 #include "ApiClient.h"
@@ -112,5 +112,5 @@ protected:
 }
 }
 
-#endif /* UserApi_H_ */
+#endif /* IO_SWAGGER_CLIENT_API_UserApi_H_ */
 
diff --git a/samples/client/petstore/cpprest/model/ApiResponse.h b/samples/client/petstore/cpprest/model/ApiResponse.h
index ff7ebe5f8f27..248d080d830c 100644
--- a/samples/client/petstore/cpprest/model/ApiResponse.h
+++ b/samples/client/petstore/cpprest/model/ApiResponse.h
@@ -16,8 +16,8 @@
  * Describes the result of uploading an image resource
  */
 
-#ifndef ApiResponse_H_
-#define ApiResponse_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_ApiResponse_H_
+#define IO_SWAGGER_CLIENT_MODEL_ApiResponse_H_
 
 
 #include "ModelBase.h"
@@ -89,4 +89,4 @@ protected:
 }
 }
 
-#endif /* ApiResponse_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_ApiResponse_H_ */
diff --git a/samples/client/petstore/cpprest/model/Category.h b/samples/client/petstore/cpprest/model/Category.h
index c07a4f55b4d5..16b94d97cf08 100644
--- a/samples/client/petstore/cpprest/model/Category.h
+++ b/samples/client/petstore/cpprest/model/Category.h
@@ -16,8 +16,8 @@
  * A category for a pet
  */
 
-#ifndef Category_H_
-#define Category_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_Category_H_
+#define IO_SWAGGER_CLIENT_MODEL_Category_H_
 
 
 #include "ModelBase.h"
@@ -80,4 +80,4 @@ protected:
 }
 }
 
-#endif /* Category_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_Category_H_ */
diff --git a/samples/client/petstore/cpprest/model/Order.h b/samples/client/petstore/cpprest/model/Order.h
index 6ca957ae4bc0..844a0fcd9fe5 100644
--- a/samples/client/petstore/cpprest/model/Order.h
+++ b/samples/client/petstore/cpprest/model/Order.h
@@ -16,8 +16,8 @@
  * An order for a pets from the pet store
  */
 
-#ifndef Order_H_
-#define Order_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_Order_H_
+#define IO_SWAGGER_CLIENT_MODEL_Order_H_
 
 
 #include "ModelBase.h"
@@ -116,4 +116,4 @@ protected:
 }
 }
 
-#endif /* Order_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_Order_H_ */
diff --git a/samples/client/petstore/cpprest/model/Pet.h b/samples/client/petstore/cpprest/model/Pet.h
index df26cd36d1c1..0360c6777c69 100644
--- a/samples/client/petstore/cpprest/model/Pet.h
+++ b/samples/client/petstore/cpprest/model/Pet.h
@@ -16,8 +16,8 @@
  * A pet for sale in the pet store
  */
 
-#ifndef Pet_H_
-#define Pet_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_Pet_H_
+#define IO_SWAGGER_CLIENT_MODEL_Pet_H_
 
 
 #include "ModelBase.h"
@@ -113,4 +113,4 @@ protected:
 }
 }
 
-#endif /* Pet_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_Pet_H_ */
diff --git a/samples/client/petstore/cpprest/model/Tag.h b/samples/client/petstore/cpprest/model/Tag.h
index 24b9e654188f..17bd0a0ebb4b 100644
--- a/samples/client/petstore/cpprest/model/Tag.h
+++ b/samples/client/petstore/cpprest/model/Tag.h
@@ -16,8 +16,8 @@
  * A tag for a pet
  */
 
-#ifndef Tag_H_
-#define Tag_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_Tag_H_
+#define IO_SWAGGER_CLIENT_MODEL_Tag_H_
 
 
 #include "ModelBase.h"
@@ -80,4 +80,4 @@ protected:
 }
 }
 
-#endif /* Tag_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_Tag_H_ */
diff --git a/samples/client/petstore/cpprest/model/User.h b/samples/client/petstore/cpprest/model/User.h
index 69eedb0fcfac..f213883e4c43 100644
--- a/samples/client/petstore/cpprest/model/User.h
+++ b/samples/client/petstore/cpprest/model/User.h
@@ -16,8 +16,8 @@
  * A User who is purchasing from the pet store
  */
 
-#ifndef User_H_
-#define User_H_
+#ifndef IO_SWAGGER_CLIENT_MODEL_User_H_
+#define IO_SWAGGER_CLIENT_MODEL_User_H_
 
 
 #include "ModelBase.h"
@@ -134,4 +134,4 @@ protected:
 }
 }
 
-#endif /* User_H_ */
+#endif /* IO_SWAGGER_CLIENT_MODEL_User_H_ */