diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
index 571ab8e..1149edf 100644
--- a/tutorial/tutorial.thrift
+++ b/tutorial/tutorial.thrift
@@ -64,6 +64,7 @@
  */
 namespace cpp tutorial
 namespace d tutorial
+namespace dart tutorial
 namespace java tutorial
 namespace php tutorial
 namespace perl tutorial