diff --git a/src/Generator/Passes/RenamePass.cs b/src/Generator/Passes/RenamePass.cs
index 9464d5e7..8549977c 100644
--- a/src/Generator/Passes/RenamePass.cs
+++ b/src/Generator/Passes/RenamePass.cs
@@ -120,6 +120,7 @@ namespace CppSharp.Passes
             var function = decl as Function;
             if (function != null && function.SynthKind != FunctionSynthKind.AdjustedMethod)
             {
+                declarations.Add(function.Namespace);
                 // account for overloads
                 declarations.AddRange(GetFunctionsWithTheSameParams(function));
             }
diff --git a/tests/CSharp/CSharp.cpp b/tests/CSharp/CSharp.cpp
index 006b9830..f796a61a 100644
--- a/tests/CSharp/CSharp.cpp
+++ b/tests/CSharp/CSharp.cpp
@@ -41,6 +41,10 @@ void Foo::setNoParams()
 {
 }
 
+void Foo::foo(int i)
+{
+}
+
 const int Foo::rename;
 
 int Foo::makeFunctionCall()
diff --git a/tests/CSharp/CSharp.h b/tests/CSharp/CSharp.h
index 669b7ed6..71293759 100644
--- a/tests/CSharp/CSharp.h
+++ b/tests/CSharp/CSharp.h
@@ -16,6 +16,7 @@ public:
     int (STDCALL *attributedFunctionPtr)();
     bool isNoParams();
     void setNoParams();
+    void foo(int i);
 
     static const int rename = 5;
     static int makeFunctionCall();