diff --git a/docs/libs/gst-plugins-base-libs-sections.txt b/docs/libs/gst-plugins-base-libs-sections.txt
index ce3091762d..5b0007740d 100644
--- a/docs/libs/gst-plugins-base-libs-sections.txt
+++ b/docs/libs/gst-plugins-base-libs-sections.txt
@@ -1844,6 +1844,7 @@ gst_video_format_get_row_stride
 gst_video_format_get_size
 gst_video_format_has_alpha
 gst_video_format_is_rgb
+gst_video_format_is_gray
 gst_video_format_is_yuv
 gst_video_format_to_fourcc
 gst_video_format_from_fourcc