diff --git a/gst/rtp/gstrtptheorapay.c b/gst/rtp/gstrtptheorapay.c
index 183d611fb8..890eddc4f3 100644
--- a/gst/rtp/gstrtptheorapay.c
+++ b/gst/rtp/gstrtptheorapay.c
@@ -353,6 +353,7 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload)
     GstBuffer *buf = GST_BUFFER_CAST (walk->data);
 
     guint bsize, size, temp;
+    guint flag;
 
     /* only need to store the length when it's not the last header */
     if (!g_list_next (walk))
@@ -370,10 +371,12 @@ gst_rtp_theora_pay_finish_headers (GstBaseRTPPayload * basepayload)
 
     bsize = GST_BUFFER_SIZE (buf);
     /* write the size backwards */
+    flag = 0;
     while (size) {
       size--;
-      data[size] = bsize & 0x7f;
+      data[size] = (bsize & 0x7f) | flag;
       bsize >>= 7;
+      flag = 0x80;
     }
     data += temp;
   }