diff --git a/modules/openapi-generator/src/main/resources/cpp-rest-sdk-client/api-header.mustache b/modules/openapi-generator/src/main/resources/cpp-rest-sdk-client/api-header.mustache
index 8f7aad02547..fbf515deb15 100644
--- a/modules/openapi-generator/src/main/resources/cpp-rest-sdk-client/api-header.mustache
+++ b/modules/openapi-generator/src/main/resources/cpp-rest-sdk-client/api-header.mustache
@@ -51,7 +51,7 @@ public:
     ~{{classname}}() override;
     {{/gmockApis}}
     {{^gmockApis}}
-    virtual ~{{classname}}() = default;
+    virtual ~{{classname}}();
     {{/gmockApis}}
 
     {{#operation}}
diff --git a/samples/client/petstore/cpp-restsdk/api/PetApi.h b/samples/client/petstore/cpp-restsdk/api/PetApi.h
index 2f5c70e77e6..b2d42109f45 100644
--- a/samples/client/petstore/cpp-restsdk/api/PetApi.h
+++ b/samples/client/petstore/cpp-restsdk/api/PetApi.h
@@ -43,7 +43,7 @@ public:
 
     explicit PetApi( std::shared_ptr<ApiClient> apiClient );
 
-    virtual ~PetApi() = default;
+    virtual ~PetApi();
 
     /// <summary>
     /// Add a new pet to the store
diff --git a/samples/client/petstore/cpp-restsdk/api/StoreApi.h b/samples/client/petstore/cpp-restsdk/api/StoreApi.h
index 4d78791de44..0b9f2b5c0f4 100644
--- a/samples/client/petstore/cpp-restsdk/api/StoreApi.h
+++ b/samples/client/petstore/cpp-restsdk/api/StoreApi.h
@@ -42,7 +42,7 @@ public:
 
     explicit StoreApi( std::shared_ptr<ApiClient> apiClient );
 
-    virtual ~StoreApi() = default;
+    virtual ~StoreApi();
 
     /// <summary>
     /// Delete purchase order by ID
diff --git a/samples/client/petstore/cpp-restsdk/api/UserApi.h b/samples/client/petstore/cpp-restsdk/api/UserApi.h
index d4218faa6a9..76e5e7894df 100644
--- a/samples/client/petstore/cpp-restsdk/api/UserApi.h
+++ b/samples/client/petstore/cpp-restsdk/api/UserApi.h
@@ -42,7 +42,7 @@ public:
 
     explicit UserApi( std::shared_ptr<ApiClient> apiClient );
 
-    virtual ~UserApi() = default;
+    virtual ~UserApi();
 
     /// <summary>
     /// Create user