diff --git a/src/sound/oalsound.h b/src/sound/oalsound.h
index 5b0345f568..2931e75316 100644
--- a/src/sound/oalsound.h
+++ b/src/sound/oalsound.h
@@ -198,7 +198,6 @@ private:
 
     std::vector<SoundStream*> Streams;
     friend class OpenALSoundStream;
-    friend class OpenALCallbackStream;
 };
 
 #endif // NO_OPENAL