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-rw-r--r--engines/scumm/smush/smush_mixer.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/engines/scumm/smush/smush_mixer.h b/engines/scumm/smush/smush_mixer.h
index 18ec7f96fb..1bd6adac16 100644
--- a/engines/scumm/smush/smush_mixer.h
+++ b/engines/scumm/smush/smush_mixer.h
@@ -28,6 +28,10 @@
#include "common/mutex.h"
#include "scumm/sound.h"
+namespace Audio {
+class QueuingAudioStream;
+}
+
namespace Scumm {
class SmushChannel;