diff --git a/gst/typefind/gsttypefindfunctions.c b/gst/typefind/gsttypefindfunctions.c
index c171a41004..13d807b71b 100644
--- a/gst/typefind/gsttypefindfunctions.c
+++ b/gst/typefind/gsttypefindfunctions.c
@@ -1146,7 +1146,7 @@ static const struct ac3_frmsize ac3_frmsizecod_tbl[] = {
 static void
 ac3_type_find (GstTypeFind * tf, gpointer unused)
 {
-  guint8 *data = gst_type_find_peek (tf, 0, 1024);
+  guint8 *data = gst_type_find_peek (tf, 0, 5);
   gint offset = 0;
 
   /* Search for an ac3 frame; not neccesarily right at the start, but give it
@@ -1182,6 +1182,7 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
       }
     }
     offset++;
+    data = gst_type_find_peek (tf, offset, 5);
   }
 }