diff --git a/sys/mfc/gstmfcdec.c b/sys/mfc/gstmfcdec.c
index 1d867bbea4..5b709279ff 100644
--- a/sys/mfc/gstmfcdec.c
+++ b/sys/mfc/gstmfcdec.c
@@ -396,6 +396,8 @@ done:
       goto enqueue_error;
   }
 
+  if (!frame && outbuf)
+    gst_buffer_unref (outbuf);
   if (state)
     gst_video_codec_state_unref (state);
   if (frame)