diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index e850484e59..c13059ae69 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -630,7 +630,7 @@ int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
          */
         av_log(h->s.avctx, AV_LOG_ERROR,
                "number of reference frames exceeds max (probably "
-               "corrupt input), discarding one\n");
+               "corrupt input), discarding one long:%d short:%d max:%d\n", h->long_ref_count, h->short_ref_count, h->sps.ref_frame_count);
 
         if (h->long_ref_count && !h->short_ref_count) {
             for (i = 0; i < 16; ++i)