diff --git a/lib/swift/Sources/TBinary.swift b/lib/swift/Sources/TBinary.swift
new file mode 100644
index 0000000..4be5644
--- /dev/null
+++ b/lib/swift/Sources/TBinary.swift
@@ -0,0 +1,32 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import Foundation
+
+extension Data : TSerializable {
+  public static var thriftType: TType { return .string }
+  
+  public static func read(from proto: TProtocol) throws -> Data {
+    return try proto.read() as Data
+  }
+  
+  public func write(to proto: TProtocol) throws {
+    try proto.write(self)
+  }
+}