diff --git a/libavfilter/af_asoftclip.c b/libavfilter/af_asoftclip.c
index f7c7b51cd1..a42b56dff4 100644
--- a/libavfilter/af_asoftclip.c
+++ b/libavfilter/af_asoftclip.c
@@ -284,4 +284,5 @@ AVFilter ff_af_asoftclip = {
     .priv_class     = &asoftclip_class,
     .inputs         = inputs,
     .outputs        = outputs,
+    .flags          = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
 };