diff --git a/stepmania/src/StepMania-net2005.vcproj b/stepmania/src/StepMania-net2005.vcproj
index c1c0afe417..e69625a763 100644
--- a/stepmania/src/StepMania-net2005.vcproj
+++ b/stepmania/src/StepMania-net2005.vcproj
@@ -1236,6 +1236,10 @@
 				RelativePath=".\MenuInput.h"
 				>
 			</File>
+			<File
+				RelativePath=".\ModsGroup.cpp"
+				>
+			</File>
 			<File
 				RelativePath=".\ModsGroup.h"
 				>