diff --git a/test/DebugProtoTest_extras.cpp b/test/DebugProtoTest_extras.cpp
new file mode 100644
index 0000000..e68c544
--- /dev/null
+++ b/test/DebugProtoTest_extras.cpp
@@ -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.
+ */
+
+// Extra functions required for DebugProtoTest_types to work
+
+#include "gen-cpp/DebugProtoTest_types.h"
+
+
+namespace thrift { namespace test { namespace debug {
+
+bool Empty::operator<(Empty const& other) const {
+  // It is empty, so all are equal.
+  return false;
+}
+
+}}}