diff --git a/sound/oss/au1550_ac97.c b/sound/oss/au1550_ac97.c
index c4a4cdc07ab9de2a1c33384d18f4f55e8b8f28a6..c6f2621221baeebb428652df9dd51abfb5628b5b 100644
--- a/sound/oss/au1550_ac97.c
+++ b/sound/oss/au1550_ac97.c
@@ -50,7 +50,6 @@
 #include <linux/poll.h>
 #include <linux/bitops.h>
 #include <linux/spinlock.h>
-#include <linux/smp_lock.h>
 #include <linux/ac97_codec.h>
 #include <linux/mutex.h>