diff --git a/sound/oss/sh_dac_audio.c b/sound/oss/sh_dac_audio.c
index fdb58eb83d4e..479e3025a8a3 100644
--- a/sound/oss/sh_dac_audio.c
+++ b/sound/oss/sh_dac_audio.c
@@ -15,7 +15,6 @@
 #include <linux/linkage.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
-#include <linux/smp_lock.h>
 #include <linux/sound.h>
 #include <linux/smp_lock.h>
 #include <linux/soundcard.h>