diff --git a/drivers/media/radio/radio-mr800.c b/drivers/media/radio/radio-mr800.c
index cab19d05e02f91567750c427c4e45dfed73463e7..837467f93805e9c2f32b37c0f71cce6d3852ffef 100644
--- a/drivers/media/radio/radio-mr800.c
+++ b/drivers/media/radio/radio-mr800.c
@@ -64,6 +64,7 @@
 #include <media/v4l2-ioctl.h>
 #include <linux/usb.h>
 #include <linux/version.h>	/* for KERNEL_VERSION MACRO */
+#include <linux/mutex.h>
 
 /* driver and module definitions */
 #define DRIVER_AUTHOR "Alexey Klimov <klimov.linux@gmail.com>"