diff --git a/frontend/ui/widget/configdialog.lua b/frontend/ui/widget/configdialog.lua
index 6c3589e27..bbc4231e3 100644
--- a/frontend/ui/widget/configdialog.lua
+++ b/frontend/ui/widget/configdialog.lua
@@ -21,6 +21,7 @@ local VerticalGroup = require("ui/widget/verticalgroup")
 local Geom = require("ui/geometry")
 local Screen = require("ui/screen")
 local Event = require("ui/event")
+local DEBUG = require("dbg")
 local _ = require("gettext")
 
 local MenuBarItem = InputContainer:new{}