diff --git a/lisp/textmodes/markdown-ts-mode-x.el b/lisp/textmodes/markdown-ts-mode-x.el
index 7405078ab4b..1327191828e 100644
--- a/lisp/textmodes/markdown-ts-mode-x.el
+++ b/lisp/textmodes/markdown-ts-mode-x.el
@@ -91,6 +91,8 @@ The function is called with one argument, the file name."
 (defconst markdown-ts--convert-output-buffer
   "*markdown-ts-convert output*")
 
+(treesit-declare-unavailable-functions)
+
 (defvar markdown-ts-converters
   (list
    (cons 'html
diff --git a/lisp/treesit.el b/lisp/treesit.el
index baebdbb31dc..c03740159c7 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -131,6 +131,8 @@ in a Emacs not built with tree-sitter library."
 
      (declare-function treesit-available-p "treesit.c")
 
+     (declare-function treesit-parser-remove-notifier "treesit.c")
+
      (defvar treesit-thing-settings)
      (defvar treesit-major-mode-remap-alist)
      (defvar treesit-extra-load-path)))