diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index d425e889af..b5a642eb5d 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -220,6 +220,7 @@ void avfilter_init(void)
     avfilter_register(&vf_crop);
     avfilter_register(&vf_fps);
     avfilter_register(&vf_graph);
+    avfilter_register(&vf_overlay);
     avfilter_register(&vf_passthrough);
     avfilter_register(&vf_rgb2bgr);
     avfilter_register(&vf_slicify);