diff --git a/libs/strophe/strophe.jingle.sdp.util.js b/libs/strophe/strophe.jingle.sdp.util.js
index c7b244038..9585f23fe 100644
--- a/libs/strophe/strophe.jingle.sdp.util.js
+++ b/libs/strophe/strophe.jingle.sdp.util.js
@@ -391,6 +391,12 @@ SDPUtil = {
                 }
                 break;
         }
+        if (cand.getAttribute('protocol').toLowerCase() == 'tcp') {
+            line += 'tcptype';
+            line += ' ';
+            line += cand.getAttribute('tcptype');
+            line += ' ';
+        }
         line += 'generation';
         line += ' ';
         line += cand.getAttribute('generation') || '0';