diff --git a/sys/windows/vs/NetHack/NetHack.vcxproj b/sys/windows/vs/NetHack/NetHack.vcxproj
index a84e06d3a..bdf882ece 100644
--- a/sys/windows/vs/NetHack/NetHack.vcxproj
+++ b/sys/windows/vs/NetHack/NetHack.vcxproj
@@ -79,6 +79,7 @@
     <ClCompile Include="$(SrcDir)ball.c" />
     <ClCompile Include="$(SrcDir)bones.c" />
     <ClCompile Include="$(SrcDir)botl.c" />
+    <ClCompile Include="$(SrcDir)coloratt.c" />
     <ClCompile Include="$(SrcDir)cmd.c" />
     <ClCompile Include="$(SrcDir)dbridge.c" />
     <ClCompile Include="$(SrcDir)date.c" />
@@ -297,4 +298,4 @@
   <Target Name="AfterRebuild">
     <MSBuild Projects="afternethack.proj" Targets="Build" Properties="Configuration=$(Configuration)" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/sys/windows/vs/NetHackW/NetHackW.vcxproj b/sys/windows/vs/NetHackW/NetHackW.vcxproj
index 15ccd14d7..54286325c 100644
--- a/sys/windows/vs/NetHackW/NetHackW.vcxproj
+++ b/sys/windows/vs/NetHackW/NetHackW.vcxproj
@@ -87,6 +87,7 @@
     <ClCompile Include="$(SrcDir)ball.c" />
     <ClCompile Include="$(SrcDir)bones.c" />
     <ClCompile Include="$(SrcDir)botl.c" />
+    <ClCompile Include="$(SrcDir)coloratt.c" />
     <ClCompile Include="$(SrcDir)cmd.c" />
     <ClCompile Include="$(SrcDir)date.c" />
     <ClCompile Include="$(SrcDir)dbridge.c" />
@@ -360,4 +361,4 @@
   <Target Name="AfterRebuild">
     <MSBuild Projects="$(vsDir)NetHack\afternethack.proj" Targets="Build" Properties="Configuration=$(Configuration)" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>