diff --git a/tutorial/shared.thrift b/tutorial/shared.thrift
index 3cc1bb3..f1685bd 100644
--- a/tutorial/shared.thrift
+++ b/tutorial/shared.thrift
@@ -22,6 +22,7 @@
  * these definitions.
  */
 
+namespace cl shared
 namespace cpp shared
 namespace d share // "shared" would collide with the eponymous D keyword.
 namespace dart shared