diff --git a/stepmania/src/StepMania.vcproj b/stepmania/src/StepMania.vcproj
index 0ee6c9d492..ba942730d3 100644
--- a/stepmania/src/StepMania.vcproj
+++ b/stepmania/src/StepMania.vcproj
@@ -979,6 +979,12 @@ cl /Zl /nologo /c verstub.cpp /Fo"$(IntDir)"\
 					<File
 						RelativePath="arch\Lights\LightsDriver_Null.h">
 					</File>
+					<File
+						RelativePath="arch\Lights\LightsDriver_SystemMessage.cpp">
+					</File>
+					<File
+						RelativePath="arch\Lights\LightsDriver_SystemMessage.h">
+					</File>
 					<File
 						RelativePath="arch\Lights\LightsDriver_Win32Parallel.cpp">
 					</File>