diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index fa91290ad89db0d9121a691aedad917b85d0a012..84676a8fb60dcfc7798597470a6233e23e36611f 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -1210,6 +1210,7 @@ static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream)
 		} while (drain_urbs && timeout);
 		finish_wait(&ep->drain_wait, &wait);
 	}
+	port->active = 0;
 	spin_unlock_irq(&ep->buffer_lock);
 }