diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
index 6e33130..f1e2912 100644
--- a/tutorial/tutorial.thrift
+++ b/tutorial/tutorial.thrift
@@ -63,6 +63,7 @@
  * target languages.
  */
 
+namespace cl tutorial
 namespace cpp tutorial
 namespace d tutorial
 namespace dart tutorial