diff --git a/drivers/media/usb/cx231xx/cx231xx-dvb.c b/drivers/media/usb/cx231xx/cx231xx-dvb.c
index 680c175be28d8b564f3ef973900cf668a4fa8838..3a5ed2a8209b099fe57943c67af9312053795d64 100644
--- a/drivers/media/usb/cx231xx/cx231xx-dvb.c
+++ b/drivers/media/usb/cx231xx/cx231xx-dvb.c
@@ -504,6 +504,9 @@ static int register_dvb(struct cx231xx_dvb *dvb,
 				dev->name, result);
 			goto fail_frontend1;
 		}
+
+		/* MFE lock */
+		dvb->adapter.mfe_shared = 1;
 	}
 
 	/* register demux stuff */