diff --git a/gst/rtp/gstrtpceltdepay.c b/gst/rtp/gstrtpceltdepay.c
index 36e7f595c0..90c126390a 100644
--- a/gst/rtp/gstrtpceltdepay.c
+++ b/gst/rtp/gstrtpceltdepay.c
@@ -247,7 +247,7 @@ gst_rtp_celt_depay_process (GstRTPBaseDepayload * depayload, GstBuffer * buf)
     do {
       s = payload[pos++];
       size += s;
-      total_size += size + 1;
+      total_size += s + 1;
     } while (s == 0xff);
 
     outbuf = gst_rtp_buffer_get_payload_subbuffer (&rtp, offset, size);