diff --git a/src/windows/Stella.vcxproj b/src/windows/Stella.vcxproj
index df7f4978e..8f4243ec2 100644
--- a/src/windows/Stella.vcxproj
+++ b/src/windows/Stella.vcxproj
@@ -604,7 +604,9 @@
     <ClInclude Include="..\emucore\CartMDM.hxx" />
     <ClInclude Include="..\emucore\CartWD.hxx" />
     <ClInclude Include="..\emucore\CompuMate.hxx" />
+    <ClInclude Include="..\emucore\EventHandlerConstants.hxx" />
     <ClInclude Include="..\emucore\FBSurface.hxx" />
+    <ClInclude Include="..\emucore\FrameBufferConstants.hxx" />
     <ClInclude Include="..\emucore\MindLink.hxx" />
     <ClInclude Include="..\emucore\PointingDevice.hxx" />
     <ClInclude Include="..\emucore\TIASurface.hxx" />
diff --git a/src/windows/Stella.vcxproj.filters b/src/windows/Stella.vcxproj.filters
index 17a198f38..6bbf70a81 100644
--- a/src/windows/Stella.vcxproj.filters
+++ b/src/windows/Stella.vcxproj.filters
@@ -1778,6 +1778,12 @@
     <ClInclude Include="..\gui\RadioButtonWidget.hxx">
       <Filter>Header Files\gui</Filter>
     </ClInclude>
+    <ClInclude Include="..\emucore\EventHandlerConstants.hxx">
+      <Filter>Header Files\emucore</Filter>
+    </ClInclude>
+    <ClInclude Include="..\emucore\FrameBufferConstants.hxx">
+      <Filter>Header Files\emucore</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="stella.ico">