diff --git a/scal3/ui.py b/scal3/ui.py
index cadae1bbc..f9f2dea9d 100644
--- a/scal3/ui.py
+++ b/scal3/ui.py
@@ -140,6 +140,7 @@
 	"mainWinRightPanelPluginsFont",
 	"mainWinRightPanelEventJustification",
 	"mainWinRightPanelPluginsJustification",
+	"mainWinRightPanelResizeOnToggle",
 	"mainWinRightPanelEventSep",
 	"eventDayViewEventSep",
 	"mainWinRightPanelBorderWidth",