diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index b64448d009..de1d7ec0e8 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -491,6 +491,9 @@ void avfilter_draw_slice(AVFilterLink *link, int y, int h);
 /** Initialize the filter system.  Registers all builtin filters */
 void avfilter_init(void);
 
+/** Initialize the filter system.  Registers all builtin filters */
+void avfilter_register_all(void)
+
 /** Uninitialize the filter system.  Unregisters all filters */
 void avfilter_uninit(void);