diff --git a/drivers/media/video/v4l2-ctrls.c b/drivers/media/video/v4l2-ctrls.c
index babfb13dc7f2ceeb3c00efd45256897db0aac30d..b6a2ee71e5c300cead8a4d77cb4e627c687a476e 100644
--- a/drivers/media/video/v4l2-ctrls.c
+++ b/drivers/media/video/v4l2-ctrls.c
@@ -2121,7 +2121,7 @@ static int prepare_ext_ctrls(struct v4l2_ctrl_handler *hdl,
 
 	/* First zero the helper field in the master control references */
 	for (i = 0; i < cs->count; i++)
-		helpers[i].mref->helper = 0;
+		helpers[i].mref->helper = NULL;
 	for (i = 0, h = helpers; i < cs->count; i++, h++) {
 		struct v4l2_ctrl_ref *mref = h->mref;