diff --git a/lib/rb/ext/bytes.c b/lib/rb/ext/bytes.c
new file mode 100644
index 0000000..8a6fac4
--- /dev/null
+++ b/lib/rb/ext/bytes.c
@@ -0,0 +1,36 @@
+/**
+ * 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.
+ */
+
+#include <ruby.h>
+#ifdef HAVE_RUBY_ENCODING_H
+#include <ruby/encoding.h>
+#endif
+#include <constants.h>
+
+VALUE force_binary_encoding(VALUE buffer) {
+  return rb_funcall(thrift_bytes_module, force_binary_encoding_id, 1, buffer);
+}
+
+VALUE convert_to_utf8_byte_buffer(VALUE string) {
+  return rb_funcall(thrift_bytes_module, convert_to_utf8_byte_buffer_id, 1, string);
+}
+
+VALUE convert_to_string(VALUE utf8_buffer) {
+  return rb_funcall(thrift_bytes_module, convert_to_string_id, 1, utf8_buffer);
+}