diff --git a/test/rb/integration/TestClient.rb b/test/rb/integration/TestClient.rb
old mode 100644
new mode 100755
index f3450db..41625a8
--- a/test/rb/integration/TestClient.rb
+++ b/test/rb/integration/TestClient.rb
@@ -1,3 +1,5 @@
+#!/usr/bin/env ruby
+
 #
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements. See the NOTICE file