diff --git a/libc/kernel/uapi/linux/v4l2-controls.h b/libc/kernel/uapi/linux/v4l2-controls.h
index 28ee31d..0251059 100644
--- a/libc/kernel/uapi/linux/v4l2-controls.h
+++ b/libc/kernel/uapi/linux/v4l2-controls.h
@@ -325,6 +325,7 @@
 #define V4L2_CID_MPEG_VIDEO_FRAME_LTR_INDEX (V4L2_CID_CODEC_BASE + 233)
 #define V4L2_CID_MPEG_VIDEO_USE_LTR_FRAMES (V4L2_CID_CODEC_BASE + 234)
 #define V4L2_CID_MPEG_VIDEO_DEC_CONCEAL_COLOR (V4L2_CID_CODEC_BASE + 235)
+#define V4L2_CID_MPEG_VIDEO_INTRA_REFRESH_PERIOD (V4L2_CID_CODEC_BASE + 236)
 #define V4L2_CID_MPEG_VIDEO_MPEG2_LEVEL (V4L2_CID_CODEC_BASE + 270)
 enum v4l2_mpeg_video_mpeg2_level {
   V4L2_MPEG_VIDEO_MPEG2_LEVEL_LOW = 0,