diff --git a/modules/openapi-generator/src/main/resources/cpprest/api-header.mustache b/modules/openapi-generator/src/main/resources/cpprest/api-header.mustache
index 8493906176d0..49200e4f2ab4 100644
--- a/modules/openapi-generator/src/main/resources/cpprest/api-header.mustache
+++ b/modules/openapi-generator/src/main/resources/cpprest/api-header.mustache
@@ -39,7 +39,7 @@ public:
     {{/allParams}}
     pplx::task<{{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}}> {{operationId}}(
         {{#allParams}}
-        {{^required}}boost::optional<{{/required}}{{{dataType}}}{{^required}}>{{/required}} {{paramName}}{{#hasMore}},{{/hasMore}}
+        {{^required}}boost::optional<{{/required}}{{#isFile}}std::shared_ptr<{{/isFile}}{{{dataType}}}{{#isFile}}>{{/isFile}}{{^required}}>{{/required}} {{paramName}}{{#hasMore}},{{/hasMore}}
         {{/allParams}}
     );
     {{/operation}}
diff --git a/samples/client/petstore/cpprest/api/PetApi.h b/samples/client/petstore/cpprest/api/PetApi.h
index 44656672f494..a16bcbb653bf 100644
--- a/samples/client/petstore/cpprest/api/PetApi.h
+++ b/samples/client/petstore/cpprest/api/PetApi.h
@@ -129,7 +129,7 @@ class  PetApi
     pplx::task<std::shared_ptr<ApiResponse>> uploadFile(
         int64_t petId,
         boost::optional<utility::string_t> additionalMetadata,
-        boost::optional<HttpContent> file
+        boost::optional<std::shared_ptr<HttpContent>> file
     );
 
 protected: