diff --git a/libavfilter/af_extrastereo.c b/libavfilter/af_extrastereo.c
index 13c6f47776..83eba47410 100644
--- a/libavfilter/af_extrastereo.c
+++ b/libavfilter/af_extrastereo.c
@@ -128,4 +128,5 @@ AVFilter ff_af_extrastereo = {
     .priv_class     = &extrastereo_class,
     .inputs         = inputs,
     .outputs        = outputs,
+    .flags          = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
 };