diff --git a/templates/class.tmpl b/templates/class.tmpl
index d0eb0c6..5dfa82b 100644
--- a/templates/class.tmpl
+++ b/templates/class.tmpl
@@ -1,3 +1,7 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
 namespace ${namespace}
 {
     public class ${classname}