diff --git a/lisp/treesit.el b/lisp/treesit.el
index e8d57dfcd06..c4aba4c3e8d 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -2386,7 +2386,6 @@ before calling this function."
                 '( nil nil nil nil
                    (font-lock-fontify-syntactically-function
                     . treesit-font-lock-fontify-region)))
-    (font-lock-mode 1)
     (treesit-font-lock-recompute-features)
     (dolist (parser (treesit-parser-list))
       (treesit-parser-add-notifier