diff --git a/sound/usb/caiaq/midi.h b/sound/usb/caiaq/midi.h
index 9d16db027fc3..380f984babc9 100644
--- a/sound/usb/caiaq/midi.h
+++ b/sound/usb/caiaq/midi.h
@@ -3,6 +3,6 @@
 
 int snd_usb_caiaq_midi_init(struct snd_usb_caiaqdev *dev);
 void snd_usb_caiaq_midi_handle_input(struct snd_usb_caiaqdev *dev, int port, const char *buf, int len);
-void snd_usb_caiaq_midi_output_done(struct urb* urb);
+void snd_usb_caiaq_midi_output_done(struct urb *urb);
 
 #endif /* CAIAQ_MIDI_H */