diff --git a/audio/drivers/dsound.c b/audio/drivers/dsound.c
index 10855c7b38..e6bc5eb16c 100644
--- a/audio/drivers/dsound.c
+++ b/audio/drivers/dsound.c
@@ -19,10 +19,11 @@
 #include <stddef.h>
 #include <string.h>
 
-#include <dsound.h>
 #ifndef _XBOX
 #include <mmreg.h>
+#include <mmsystem.h>
 #endif
+#include <dsound.h>
 
 #include <boolean.h>