diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 7343a27fe81966372c3ee8dc72241f2822891543..47ada23345a195973c3942681566244d50c7f34d 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -22,6 +22,7 @@
 #define _V4L2_CTRLS_H
 
 #include <linux/list.h>
+#include <linux/mutex.h>
 #include <linux/videodev2.h>
 
 /* forward references */