diff --git a/lib/parser.js b/lib/parser.js
index 13bbdf20..4d4e40bd 100644
--- a/lib/parser.js
+++ b/lib/parser.js
@@ -40,7 +40,7 @@ exports.encodePacket = function (packet) {
 
   // data fragment is optional
   if (undefined !== packet.data) {
-    encoded += ':' + packet.data;
+    encoded += packet.data;
   }
 
   return '' + encoded;