diff --git a/pkgs/racket-doc/syntax/scribblings/parse/patterns.scrbl b/pkgs/racket-doc/syntax/scribblings/parse/patterns.scrbl
index d1fd1b5904..a01b5cbbb9 100644
--- a/pkgs/racket-doc/syntax/scribblings/parse/patterns.scrbl
+++ b/pkgs/racket-doc/syntax/scribblings/parse/patterns.scrbl
@@ -1059,9 +1059,8 @@ The grammar of @tech{syntax patterns} is extensible through the use of
 @deftech{pattern expanders}, which allow the definition of new pattern
 forms by rewriting them into existing pattern forms.
 
-@margin-note{A @tech{pattern expander}'s name must begin with a @code{~}
-             character. Otherwise, @racket[syntax-parse] and other
-             @racketmodname[syntax/parse] forms will not recognize it.}
+@margin-note{As a convention to avoid ambiguity, @tech{pattern expander}
+             names normally begin with a @code{~} character.}
 
 @defproc[(pattern-expander [proc (-> syntax? syntax?)]) pattern-expander?]{