diff --git a/sc2/src/sc2code/libs/sound/sound.h b/sc2/src/sc2code/libs/sound/sound.h
index bfb14e907..d4e29394b 100644
--- a/sc2/src/sc2code/libs/sound/sound.h
+++ b/sc2/src/sc2code/libs/sound/sound.h
@@ -41,7 +41,7 @@ typedef struct
 } TFB_SoundTag;
 
 // forward-declare
-typedef struct tfb_soundsample;
+struct tfb_soundsample;
 
 typedef struct tfb_soundcallbacks
 {