diff --git a/lisp/textmodes/toml-ts-mode.el b/lisp/textmodes/toml-ts-mode.el
index 983a1401008..cbdc758d4b3 100644
--- a/lisp/textmodes/toml-ts-mode.el
+++ b/lisp/textmodes/toml-ts-mode.el
@@ -33,6 +33,7 @@
 (declare-function treesit-induce-sparse-tree "treesit.c")
 (declare-function treesit-node-start "treesit.c")
 (declare-function treesit-node-type "treesit.c")
+(declare-function treesit-node-child "treesit.c")
 (declare-function treesit-node-child-by-field-name "treesit.c")
 
 (defcustom toml-ts-mode-indent-offset 2