diff --git a/sound/mixer.h b/sound/mixer.h
index 3ecc6997ed4..708eeeb16d1 100644
--- a/sound/mixer.h
+++ b/sound/mixer.h
@@ -37,7 +37,7 @@
 #include "common/system.h"
 
 
-typedef uint32 PlayingSoundHandle;
+typedef int32 PlayingSoundHandle;
 
 class Channel;
 class File;