diff --git a/ext/ogg/gstoggstream.c b/ext/ogg/gstoggstream.c
index 66192cc27f..9c3392c2af 100644
--- a/ext/ogg/gstoggstream.c
+++ b/ext/ogg/gstoggstream.c
@@ -1157,7 +1157,7 @@ static const GstOggMap mappers[] = {
     granule_to_granulepos_default,
     is_keyframe_true,
     is_header_fLaC,
-    NULL
+    packet_duration_flac
   },
   {
     "\177FLAC", 5, 36,