diff --git a/uppsrc/Turtle/Ctrl.h b/uppsrc/Turtle/Ctrl.h
index a6c73be75..15056380f 100644
--- a/uppsrc/Turtle/Ctrl.h
+++ b/uppsrc/Turtle/Ctrl.h
@@ -1,4 +1,4 @@
-//$ class Ctrl {
+//$ class Upp::Ctrl {
 private:
 	static Ptr<Ctrl>      desktop;
 	static Vector<Ctrl *> topctrl;