diff --git a/drivers/video/video.c b/drivers/video/video.c
index 21b262c35a..a3ba606b01 100644
--- a/drivers/video/video.c
+++ b/drivers/video/video.c
@@ -2276,6 +2276,9 @@ static int video_g_ctrl(FAR struct video_mng_s *priv,
   struct v4l2_ext_control  control;
   int                      ret;
 
+  memset(&ext_controls, 0, sizeof(struct v4l2_ext_controls));
+  memset(&control, 0, sizeof(struct v4l2_ext_control));
+
   if (ctrl == NULL)
     {
       return -EINVAL;