diff --git a/subprojects/gst-plugins-good/gst/rtp/gstrtph264depay.c b/subprojects/gst-plugins-good/gst/rtp/gstrtph264depay.c
index e1697bd62d..10b12cee6f 100644
--- a/subprojects/gst-plugins-good/gst/rtp/gstrtph264depay.c
+++ b/subprojects/gst-plugins-good/gst/rtp/gstrtph264depay.c
@@ -1344,18 +1344,19 @@ gst_rtp_h264_depay_process (GstRTPBaseDepayload * depayload, GstRTPBuffer * rtp)
           /* reconstruct NAL header */
           nal_header = (payload[0] & 0xe0) | (payload[1] & 0x1f);
 
-          /* strip type header, keep FU header, we'll reuse it to reconstruct
-           * the NAL header. */
-          payload += 1;
-          payload_len -= 1;
+          /* Strip type header, FU header */
+          payload += 2;
+          payload_len -= 2;
 
-          nalu_size = payload_len;
+          nalu_size = 1 + payload_len;
           outsize = nalu_size + sizeof (sync_bytes);
           outbuf = gst_buffer_new_and_alloc (outsize);
 
+          /* Sync_bytes or nalu_length will be set later once NALU is complete.
+           * Need to reconstruct NALU header from type header and FU header. */
           gst_buffer_map (outbuf, &map, GST_MAP_WRITE);
-          memcpy (map.data + sizeof (sync_bytes), payload, nalu_size);
           map.data[sizeof (sync_bytes)] = nal_header;
+          memcpy (map.data + sizeof (sync_bytes) + 1, payload, payload_len);
           gst_buffer_unmap (outbuf, &map);
 
           gst_rtp_copy_video_meta (rtph264depay, outbuf, rtp->buffer);