diff --git a/cnc-ddraw.vcxproj b/cnc-ddraw.vcxproj
index 091562c..aebb0ee 100644
--- a/cnc-ddraw.vcxproj
+++ b/cnc-ddraw.vcxproj
@@ -62,6 +62,7 @@
   <ItemGroup>
     <ClInclude Include="inc\d3d9shader.h" />
     <ClInclude Include="inc\ddclipper.h" />
+    <ClInclude Include="inc\ddraw.h" />
     <ClInclude Include="inc\directinput.h" />
     <ClInclude Include="inc\dllmain.h" />
     <ClInclude Include="inc\fps_limiter.h" />
diff --git a/cnc-ddraw.vcxproj.filters b/cnc-ddraw.vcxproj.filters
index b683948..fa979dc 100644
--- a/cnc-ddraw.vcxproj.filters
+++ b/cnc-ddraw.vcxproj.filters
@@ -254,6 +254,9 @@
     <ClInclude Include="inc\patch.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="inc\ddraw.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="ddraw.rc">