diff --git a/tutorial/tutorial.thrift b/tutorial/tutorial.thrift
index 7b377d6..f5e5836 100755
--- a/tutorial/tutorial.thrift
+++ b/tutorial/tutorial.thrift
@@ -48,6 +48,7 @@
 java_package tutorial
 php_namespace tutorial
 perl_package tutorial
+smalltalk_category Thrift-Tutorial
 
 /**
  * Thrift lets you do typedefs to get pretty names for your types. Standard