diff --git a/lib/layouts/stdinsets.inc b/lib/layouts/stdinsets.inc
index 9f1deb977c..57543f25a7 100644
--- a/lib/layouts/stdinsets.inc
+++ b/lib/layouts/stdinsets.inc
@@ -400,7 +400,7 @@ InsetLayout "Flex:URL"
 End
 
 InsetLayout Argument
-	LabelString           opt
+	LabelString           Argument
 	LabelFont
 	  Color               collapsable
 	  Size                Small