diff --git a/talk/app/webrtc/webrtcsdp_unittest.cc b/talk/app/webrtc/webrtcsdp_unittest.cc
index d9b2672f5d..ae5385bd06 100644
--- a/talk/app/webrtc/webrtcsdp_unittest.cc
+++ b/talk/app/webrtc/webrtcsdp_unittest.cc
@@ -284,10 +284,10 @@ static const char kSdpSctpDataChannelString[] =
     "a=mid:data_content_name\r\n"
     "a=sctpmap:5000 webrtc-datachannel 1024\r\n";
 
-// draft-ietf-mmusic-sctp-sdp-07
+// draft-ietf-mmusic-sctp-sdp-12
 static const char kSdpSctpDataChannelStringWithSctpPort[] =
-    "m=application 9 DTLS/SCTP webrtc-datachannel\r\n"
-    "a=fmtp:webrtc-datachannel max-message-size=100000\r\n"
+    "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n"
+    "a=max-message-size=100000\r\n"
     "a=sctp-port 5000\r\n"
     "c=IN IP4 0.0.0.0\r\n"
     "a=ice-ufrag:ufrag_data\r\n"
diff --git a/talk/session/media/mediasession.cc b/talk/session/media/mediasession.cc
index 41a5e1d6e8..e33dfc668f 100644
--- a/talk/session/media/mediasession.cc
+++ b/talk/session/media/mediasession.cc
@@ -71,6 +71,7 @@ const char kMediaProtocolRtpPrefix[] = "RTP/";
 
 const char kMediaProtocolSctp[] = "SCTP";
 const char kMediaProtocolDtlsSctp[] = "DTLS/SCTP";
+const char kMediaProtocolUdpDtlsSctp[] = "UDP/DTLS/SCTP";
 
 static bool IsMediaContentOfType(const ContentInfo* content,
                                  MediaType media_type) {
diff --git a/talk/session/media/mediasession.h b/talk/session/media/mediasession.h
index bf3bb7260d..bb973aaed4 100644
--- a/talk/session/media/mediasession.h
+++ b/talk/session/media/mediasession.h
@@ -86,6 +86,7 @@ extern const char kMediaProtocolRtpPrefix[];
 
 extern const char kMediaProtocolSctp[];
 extern const char kMediaProtocolDtlsSctp[];
+extern const char kMediaProtocolUdpDtlsSctp[];
 
 // Options to control how session descriptions are generated.
 const int kAutoBandwidth = -1;