diff --git a/stepmania/src/StepMania-net2003.vcproj b/stepmania/src/StepMania-net2003.vcproj
index b7786bb3ae..5ce7bf9f3a 100644
--- a/stepmania/src/StepMania-net2003.vcproj
+++ b/stepmania/src/StepMania-net2003.vcproj
@@ -2470,6 +2470,12 @@ cl /Zl /nologo /c verstub.cpp /Fo"$(IntDir)"\
 			<File
 				RelativePath="ActorScroller.h">
 			</File>
+			<File
+				RelativePath=".\ActorSound.cpp">
+			</File>
+			<File
+				RelativePath=".\ActorSound.h">
+			</File>
 			<File
 				RelativePath="ActorUtil.cpp">
 			</File>