diff --git a/modules/openapi-generator/src/main/resources/cpp-ue4/model-base-source.mustache b/modules/openapi-generator/src/main/resources/cpp-ue4/model-base-source.mustache
index 1a551ca53152..fccd960e5e5d 100644
--- a/modules/openapi-generator/src/main/resources/cpp-ue4/model-base-source.mustache
+++ b/modules/openapi-generator/src/main/resources/cpp-ue4/model-base-source.mustache
@@ -8,7 +8,9 @@ namespace {{this}}
 
 bool HttpRetryManager::Tick(float DeltaTime)
 {
+#if ENGINE_MAJOR_VERSION <= 5 && ENGINE_MINOR_VERSION <= 3
 	FManager::Update();
+#endif
 	return true;
 }
 
diff --git a/samples/client/petstore/cpp-ue4/Private/OpenAPIBaseModel.cpp b/samples/client/petstore/cpp-ue4/Private/OpenAPIBaseModel.cpp
index a119a85b5c4c..7ffb2c4325e0 100644
--- a/samples/client/petstore/cpp-ue4/Private/OpenAPIBaseModel.cpp
+++ b/samples/client/petstore/cpp-ue4/Private/OpenAPIBaseModel.cpp
@@ -17,7 +17,9 @@ namespace OpenAPI
 
 bool HttpRetryManager::Tick(float DeltaTime)
 {
+#if ENGINE_MAJOR_VERSION <= 5 && ENGINE_MINOR_VERSION <= 3
 	FManager::Update();
+#endif
 	return true;
 }