diff --git a/modules/swagger-codegen/src/main/resources/qt5cpp/model-header.mustache b/modules/swagger-codegen/src/main/resources/qt5cpp/model-header.mustache
index 0150f5b6b9d..2560c8f5bbc 100644
--- a/modules/swagger-codegen/src/main/resources/qt5cpp/model-header.mustache
+++ b/modules/swagger-codegen/src/main/resources/qt5cpp/model-header.mustache
@@ -30,10 +30,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    {{classname}}* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    {{classname}}* fromJson(QString jsonString) override;
 
     {{#vars}}
     {{{datatype}}} {{getter}}();
diff --git a/modules/swagger-codegen/src/main/resources/qt5cpp/model.mustache b/modules/swagger-codegen/src/main/resources/qt5cpp/model.mustache
deleted file mode 100644
index 42e8aabeee7..00000000000
--- a/modules/swagger-codegen/src/main/resources/qt5cpp/model.mustache
+++ /dev/null
@@ -1,66 +0,0 @@
-{{>licenseInfo}}
-{{#models}}{{#model}}/*
- * {{classname}}.h
- *
- * {{description}}
- */
-
-#ifndef {{classname}}_H_
-#define {{classname}}_H_
-
-#include <FApp.h>
-#include <FBase.h>
-#include <FSystem.h>
-#include <FWebJson.h>
-#include "{{prefix}}Helpers.h"
-#include "{{prefix}}Object.h"
-
-using namespace Tizen::Web::Json;
-
-{{/model}}{{/models}}
-{{#imports}}{{{import}}}
-{{/imports}}
-
-{{#models}}
-{{#model}}
-
-{{#cppNamespaceDeclarations}}
-namespace {{this}} {
-{{/cppNamespaceDeclarations}}
-
-class {{classname}}: public {{prefix}}Object {
-public:
-    {{classname}}();
-    {{classname}}(String* json);
-    virtual ~{{classname}}();
-
-    void init();
-
-    void cleanup();
-
-    String asJson ();
-
-    JsonObject* asJsonObject();
-
-    void fromJsonObject(IJsonValue* json);
-
-    {{classname}}* fromJson(String* obj);
-
-    {{#vars}}
-    {{datatype}} {{getter}}();
-    void {{setter}}({{{datatype}}} {{name}});
-    {{/vars}}
-
-private:
-    {{#vars}}
-    {{{datatype}}} {{name}};
-    {{/vars}}
-};
-
-{{#cppNamespaceDeclarations}}
-}
-{{/cppNamespaceDeclarations}}
-
-#endif /* {{classname}}_H_ */
-{{/model}}
-{{/models}}
diff --git a/samples/client/petstore/qt5cpp/client/SWGApiResponse.h b/samples/client/petstore/qt5cpp/client/SWGApiResponse.h
index dc94e40a736..10c31e01b71 100644
--- a/samples/client/petstore/qt5cpp/client/SWGApiResponse.h
+++ b/samples/client/petstore/qt5cpp/client/SWGApiResponse.h
@@ -36,10 +36,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGApiResponse* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGApiResponse* fromJson(QString jsonString) override;
 
     qint32 getCode();
     void setCode(qint32 code);
diff --git a/samples/client/petstore/qt5cpp/client/SWGCategory.h b/samples/client/petstore/qt5cpp/client/SWGCategory.h
index 8ccae6b87ce..ef4e309aaa3 100644
--- a/samples/client/petstore/qt5cpp/client/SWGCategory.h
+++ b/samples/client/petstore/qt5cpp/client/SWGCategory.h
@@ -36,10 +36,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGCategory* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGCategory* fromJson(QString jsonString) override;
 
     qint64 getId();
     void setId(qint64 id);
diff --git a/samples/client/petstore/qt5cpp/client/SWGOrder.h b/samples/client/petstore/qt5cpp/client/SWGOrder.h
index 90d9c850bf3..53915797ed3 100644
--- a/samples/client/petstore/qt5cpp/client/SWGOrder.h
+++ b/samples/client/petstore/qt5cpp/client/SWGOrder.h
@@ -37,10 +37,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGOrder* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGOrder* fromJson(QString jsonString) override;
 
     qint64 getId();
     void setId(qint64 id);
diff --git a/samples/client/petstore/qt5cpp/client/SWGPet.h b/samples/client/petstore/qt5cpp/client/SWGPet.h
index 428b260c402..b4e969f99c1 100644
--- a/samples/client/petstore/qt5cpp/client/SWGPet.h
+++ b/samples/client/petstore/qt5cpp/client/SWGPet.h
@@ -39,10 +39,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGPet* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGPet* fromJson(QString jsonString) override;
 
     qint64 getId();
     void setId(qint64 id);
diff --git a/samples/client/petstore/qt5cpp/client/SWGTag.h b/samples/client/petstore/qt5cpp/client/SWGTag.h
index dd7b4101563..36425fab994 100644
--- a/samples/client/petstore/qt5cpp/client/SWGTag.h
+++ b/samples/client/petstore/qt5cpp/client/SWGTag.h
@@ -36,10 +36,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGTag* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGTag* fromJson(QString jsonString) override;
 
     qint64 getId();
     void setId(qint64 id);
diff --git a/samples/client/petstore/qt5cpp/client/SWGUser.h b/samples/client/petstore/qt5cpp/client/SWGUser.h
index 5e3e7e54a4b..35f880e44ae 100644
--- a/samples/client/petstore/qt5cpp/client/SWGUser.h
+++ b/samples/client/petstore/qt5cpp/client/SWGUser.h
@@ -36,10 +36,10 @@ public:
     void init();
     void cleanup();
 
-    QString asJson ();
-    QJsonObject asJsonObject();
-    void fromJsonObject(QJsonObject json);
-    SWGUser* fromJson(QString jsonString);
+    QString asJson () override;
+    QJsonObject asJsonObject() override;
+    void fromJsonObject(QJsonObject json) override;
+    SWGUser* fromJson(QString jsonString) override;
 
     qint64 getId();
     void setId(qint64 id);