diff --git a/stepmania/src/arch/Sound/RageSoundDriver_WDMKS.cpp b/stepmania/src/arch/Sound/RageSoundDriver_WDMKS.cpp
index 9d2ea6c247..445bb79bf0 100644
--- a/stepmania/src/arch/Sound/RageSoundDriver_WDMKS.cpp
+++ b/stepmania/src/arch/Sound/RageSoundDriver_WDMKS.cpp
@@ -22,7 +22,7 @@
 typedef KSDDKAPI DWORD WINAPI KSCREATEPIN(HANDLE, PKSPIN_CONNECT, ACCESS_MASK, PHANDLE);
 
 #ifndef KSAUDIO_SPEAKER_5POINT1_SURROUND
-#define KSAUDIO_SPEAKER_5POINT1_SURROUND
+#define KSAUDIO_SPEAKER_5POINT1_SURROUND \
 	(SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_SIDE_LEFT  | SPEAKER_SIDE_RIGHT)
 #endif