diff --git a/scribblings/columns-pane.scrbl b/scribblings/columns-pane.scrbl
index 86122da..8dfa02e 100644
--- a/scribblings/columns-pane.scrbl
+++ b/scribblings/columns-pane.scrbl
@@ -52,7 +52,7 @@ See also @racket[pane%].
   Note. Use this right after declaring the columns pane and before adding any children. 
 }
 
-@defmethod*[([(column-keep-min-width (c column-index) [k (or/c #f #t])]{
+@defmethod*[([(column-keep-min-width (c column-index) [k (or/c #f #t)])]{
   Gets or sets the keep minimal width parameter for a given column c. 
 
   Returns the currently set value.