diff --git a/lisp/progmodes/eglot.el b/lisp/progmodes/eglot.el
index bf851684c90..3d2c267650e 100644
--- a/lisp/progmodes/eglot.el
+++ b/lisp/progmodes/eglot.el
@@ -720,6 +720,7 @@ This can be useful when using docker to run a language server.")
   (if (>= emacs-major-version 27) (executable-find command remote)
     (executable-find command)))
 
+(declare-function treesit-grammar-location "treesit.c")
 (defun eglot--accepted-formats ()
   (if (and (not eglot-prefer-plaintext)
            (or (fboundp 'gfm-view-mode)
diff --git a/lisp/treesit.el b/lisp/treesit.el
index 5253439a9dd..e2e62bb71a2 100644
--- a/lisp/treesit.el
+++ b/lisp/treesit.el
@@ -133,6 +133,8 @@ in a Emacs not built with tree-sitter library."
 
      (declare-function treesit-parser-remove-notifier "treesit.c")
 
+     (declare-function treesit-grammar-location "treesit.c")
+
      (defvar treesit-thing-settings)
      (defvar treesit-major-mode-remap-alist)
      (defvar treesit-extra-load-path)))