diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 86cae23cc446..29da1f4b4578 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1601,7 +1601,8 @@ struct v4l2_bt_timings {
 	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
 	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
-	 (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
+	 ((bt)->interlaced ? \
+	  ((bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) : 0))
 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
 	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))