diff --git a/gst/videoparsers/gsth263parse.c b/gst/videoparsers/gsth263parse.c
index d77a9c7d89..77bbba90a4 100644
--- a/gst/videoparsers/gsth263parse.c
+++ b/gst/videoparsers/gsth263parse.c
@@ -110,7 +110,7 @@ gst_h263_parse_start (GstBaseParse * parse)
 
   h263parse->state = PARSING;
 
-  gst_base_parse_set_min_frame_size (parse, 512);
+  gst_base_parse_set_min_frame_size (parse, 4);
 
   return TRUE;
 }
@@ -309,8 +309,8 @@ gst_h263_parse_check_valid_frame (GstBaseParse * parse,
   return TRUE;
 
 more:
-  /* Ask for 1024 bytes more - this is an arbitrary choice */
-  gst_base_parse_set_min_frame_size (parse, GST_BUFFER_SIZE (buffer) + 1024);
+  /* ask for best next available */
+  *framesize = G_MAXUINT;
 
   *skipsize = psc_pos;