diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index c09f68ce08b1..ba70f52f6860 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -44,7 +44,6 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep, bool keep_pending);
 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_suspend(struct snd_usb_endpoint *ep);
-int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_release(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free_all(struct snd_usb_audio *chip);