diff --git a/webrtc/p2p/base/turnport.cc b/webrtc/p2p/base/turnport.cc
index 56dadde9bb..e3caeb59d3 100644
--- a/webrtc/p2p/base/turnport.cc
+++ b/webrtc/p2p/base/turnport.cc
@@ -376,7 +376,11 @@ bool TurnPort::CreateTurnClientSocket() {
 }
 
 void TurnPort::OnSocketConnect(rtc::AsyncPacketSocket* socket) {
-  RTC_DCHECK(server_address_.proto == PROTO_TCP);
+  // This slot should only be invoked if we're using a connection-oriented
+  // protocol.
+  RTC_DCHECK(server_address_.proto == PROTO_TCP ||
+             server_address_.proto == PROTO_TLS);
+
   // Do not use this port if the socket bound to a different address than
   // the one we asked for. This is seen in Chrome, where TCP sockets cannot be
   // given a binding address, and the platform is expected to pick the