diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index 0a8383350a..850bf968f3 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -197,6 +197,9 @@ void avfilter_formats_ref(AVFilterFormats *f, AVFilterFormats **ref);
  */
 void avfilter_formats_unref(AVFilterFormats **ref);
 
+void avfilter_formats_changeref(AVFilterFormats **oldref,
+                                AVFilterFormats **newref);
+
 /**
  * A filter pad used for either input or output.
  */
@@ -325,9 +328,6 @@ void avfilter_set_common_formats(AVFilterContext *ctx, AVFilterFormats *formats)
 /** Default handler for query_formats() */
 int avfilter_default_query_formats(AVFilterContext *ctx);
 
-void avfilter_formats_changeref(AVFilterFormats **oldref,
-                                AVFilterFormats **newref);
-
 /**
  * Filter definition.  This defines the pads a filter contains, and all the
  * callback functions used to interact with the filter.