diff --git a/mbuni/mmsbox/mmsbox.c b/mbuni/mmsbox/mmsbox.c
index 033cad9..ee1766f 100644
--- a/mbuni/mmsbox/mmsbox.c
+++ b/mbuni/mmsbox/mmsbox.c
@@ -1029,7 +1029,7 @@ static int make_and_queue_msg(Octstr *data, Octstr *ctype, List *reply_headers,
      if (dlr_url)
 	  http_header_add(xheaders, "X-Mms-Delivery-Report", "Yes");	  
      if (rr_url)
-	  http_header_add(xheaders, "X-Mms-Read-Reply", "Yes");	  
+	  http_header_add(xheaders, "X-Mms-Read-Report", "Yes");	  
      if (allow_adaptations)
 	  http_header_add(xheaders, "X-Mms-Allow-Adaptations", 
 			  (octstr_str_compare(allow_adaptations, "true") == 0) ? "true" : "false");