diff --git a/src/libretro/Stella.vcxproj b/src/libretro/Stella.vcxproj
index e504e4a3e..f92e5ea11 100644
--- a/src/libretro/Stella.vcxproj
+++ b/src/libretro/Stella.vcxproj
@@ -248,6 +248,7 @@
     <ClCompile Include="..\emucore\Joystick.cxx" />
     <ClCompile Include="..\emucore\Keyboard.cxx" />
     <ClCompile Include="..\emucore\KidVid.cxx" />
+    <ClCompile Include="..\emucore\Lighgun.cxx" />
     <ClCompile Include="..\emucore\M6502.cxx" />
     <ClCompile Include="..\emucore\M6532.cxx" />
     <ClCompile Include="..\emucore\MD5.cxx" />