diff --git a/WickedEngine/WickedEngine_SHARED.vcxitems.filters b/WickedEngine/WickedEngine_SHARED.vcxitems.filters
index 5ef3ba8c3..4bbecf941 100644
--- a/WickedEngine/WickedEngine_SHARED.vcxitems.filters
+++ b/WickedEngine/WickedEngine_SHARED.vcxitems.filters
@@ -1098,7 +1098,9 @@
     <ClInclude Include="$(MSBuildThisFileDirectory)Include_DX11.h">
       <Filter>ENGINE\Graphics\API</Filter>
     </ClInclude>
-    <ClInclude Include="$(MSBuildThisFileDirectory)wiMeshOptimizer.h" />
+    <ClInclude Include="C:\PROJECTS\WickedEngine\WickedEngine\wiMeshOptimizer.h">
+      <Filter>ENGINE\Helpers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(MSBuildThisFileDirectory)LUA\lapi.c">