diff --git a/lisp/treesit.el b/lisp/treesit.el
index 5fe17d5d382..5e60617bce2 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -361,8 +361,9 @@ If INCLUDE-NODE is non-nil, return NODE if it satisfies PRED."
 Use the first parser in the parser list if LANGUAGE is omitted.
 
 If LANGUAGE is non-nil, use the first parser for LANGUAGE with TAG in
-the parser list.  If there's no such parser, return nil.  TAG defaults
-to nil."
+the parser list.  TAG defaults to nil.
+
+If no parser is available, throw `treesit-no-parser'."
   (let ((parser
          (or (car (treesit-parser-list nil language tag))
              (signal 'treesit-no-parser (list language)))))