diff --git a/pc/dtlstransport.cc b/pc/dtlstransport.cc
new file mode 100644
index 0000000..dd95bae
--- /dev/null
+++ b/pc/dtlstransport.cc
@@ -0,0 +1,23 @@
+/*
+ *  Copyright 2018 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "pc/dtlstransport.h"
+
+#include <utility>
+
+namespace webrtc {
+
+DtlsTransport::DtlsTransport(
+    std::unique_ptr<cricket::DtlsTransportInternal> internal)
+    : internal_dtls_transport_(std::move(internal)) {
+  RTC_DCHECK(internal_dtls_transport_.get());
+}
+
+}  // namespace webrtc