diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c
index 7563229828a883e509bd1e07342487085e860f4f..158b389d0fb796156a7f0a8e6ec368cd91c8f875 100644
--- a/drivers/hid/hid-prodikeys.c
+++ b/drivers/hid/hid-prodikeys.c
@@ -44,8 +44,6 @@ struct pk_device {
 	struct pcmidi_snd	*pm; /* pcmidi device context */
 };
 
-struct pcmidi_snd;
-
 struct pcmidi_sustain {
 	unsigned long		in_use;
 	struct pcmidi_snd	*pm;