diff --git a/Source/GlideHQ/GlideHQ.vcxproj b/Source/GlideHQ/GlideHQ.vcxproj
index a8160b166..85b9ccb40 100644
--- a/Source/GlideHQ/GlideHQ.vcxproj
+++ b/Source/GlideHQ/GlideHQ.vcxproj
@@ -78,6 +78,9 @@
     <ClInclude Include="tc-1.1+\types.h" />
   </ItemGroup>
   <ItemGroup>
+    <ProjectReference Include="..\3rdParty\zlib\zlib.vcxproj">
+      <Project>{731bd205-2826-4631-b7af-117658e88dbc}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\Common\Common.vcxproj">
       <Project>{b4a4b994-9111-42b1-93c2-6f1ca8bc4421}</Project>
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>