diff --git a/talk/app/webrtc/webrtcsdp.cc b/talk/app/webrtc/webrtcsdp.cc
index 0dcde1d2d3..b553901dfa 100644
--- a/talk/app/webrtc/webrtcsdp.cc
+++ b/talk/app/webrtc/webrtcsdp.cc
@@ -1189,7 +1189,8 @@ bool ParseExtmap(const std::string& line, RtpHeaderExtension* extmap,
 
 static bool IsSctp(const std::string& protocol) {
   return protocol == cricket::kMediaProtocolDtlsSctp
-    || protocol == cricket::kMediaProtocolUdpDtlsSctp;
+    || protocol == cricket::kMediaProtocolUdpDtlsSctp
+    || protocol == cricket::kMediaProtocolSctp;
 }
 
 void BuildMediaDescription(const ContentInfo* content_info,