diff --git a/headers/os/game/PushGameSound.h b/headers/os/game/PushGameSound.h
index 007d9a8257..51e559ea87 100644
--- a/headers/os/game/PushGameSound.h
+++ b/headers/os/game/PushGameSound.h
@@ -11,6 +11,7 @@
 
 #include <StreamingGameSound.h>
 
+class BList;
 
 class BPushGameSound : public BStreamingGameSound {
 public: