diff --git a/src/Generator/Generators/CLI/CLISourcesTemplate.cs b/src/Generator/Generators/CLI/CLISourcesTemplate.cs
index 1a13b35e..07f127ec 100644
--- a/src/Generator/Generators/CLI/CLISourcesTemplate.cs
+++ b/src/Generator/Generators/CLI/CLISourcesTemplate.cs
@@ -740,7 +740,7 @@ namespace CppSharp.Generators.CLI
             var @params = GenerateFunctionParamsMarshal(function.Parameters, function);
 
             if (needsReturn)
-                Write("auto {0}ret = ",(function.ReturnType.Type.IsReference())? "&": string.Empty);
+                Write("auto {0}__ret = ",(function.ReturnType.Type.IsReference())? "&": string.Empty);
 
             if (!IsNativeFunctionOrStaticMethod(function))
             {
@@ -799,8 +799,8 @@ namespace CppSharp.Generators.CLI
             {
                 var ctx = new MarshalContext(Driver)
                     {
-                        ArgName = "ret",
-                        ReturnVarName = "ret",
+                        ArgName = "__ret",
+                        ReturnVarName = "__ret",
                         ReturnType = retType
                     };
 
diff --git a/tests/Basic/Basic.h b/tests/Basic/Basic.h
index bf8c2ebd..1639627f 100644
--- a/tests/Basic/Basic.h
+++ b/tests/Basic/Basic.h
@@ -66,4 +66,4 @@ public:
     int RetEnum(Enum);
 };
 
-int unsafeFunction(const Bar& ret);
+int DLL_API unsafeFunction(const Bar& ret);