diff --git a/VisualC/SDL/SDL_VS2010.vcxproj b/VisualC/SDL/SDL_VS2010.vcxproj
index 2bd02d825..b3b7c8834 100644
--- a/VisualC/SDL/SDL_VS2010.vcxproj
+++ b/VisualC/SDL/SDL_VS2010.vcxproj
@@ -317,6 +317,7 @@
     <ClInclude Include="..\..\src\video\windows\SDL_windowsevents.h" />
     <ClInclude Include="..\..\src\video\windows\SDL_windowsframebuffer.h" />
     <ClInclude Include="..\..\src\video\windows\SDL_windowskeyboard.h" />
+    <ClInclude Include="..\..\src\video\windows\SDL_windowsmessagebox.h" />
     <ClInclude Include="..\..\src\video\windows\SDL_windowsmodes.h" />
     <ClInclude Include="..\..\src\video\windows\SDL_windowsmouse.h" />
     <ClInclude Include="..\..\src\video\windows\SDL_windowsopengl.h" />
@@ -432,6 +433,7 @@
     <ClCompile Include="..\..\src\video\windows\SDL_windowsevents.c" />
     <ClCompile Include="..\..\src\video\windows\SDL_windowsframebuffer.c" />
     <ClCompile Include="..\..\src\video\windows\SDL_windowskeyboard.c" />
+    <ClCompile Include="..\..\src\video\windows\SDL_windowsmessagebox.c" />
     <ClCompile Include="..\..\src\video\windows\SDL_windowsmodes.c" />
     <ClCompile Include="..\..\src\video\windows\SDL_windowsmouse.c" />
     <ClCompile Include="..\..\src\video\windows\SDL_windowsopengl.c" />