diff --git a/lisp/progmodes/ruby-ts-mode.el b/lisp/progmodes/ruby-ts-mode.el
index 9ec771e2fff..d68b57966ba 100644
--- a/lisp/progmodes/ruby-ts-mode.el
+++ b/lisp/progmodes/ruby-ts-mode.el
@@ -82,6 +82,16 @@
 (require 'ruby-mode)
 
 (declare-function treesit-parser-create "treesit.c")
+(declare-function treesit-induce-sparse-tree "treesit.c")
+(declare-function treesit-node-child-by-field-name "treesit.c")
+(declare-function treesit-search-subtree "treesit.c")
+(declare-function treesit-node-parent "treesit.c")
+(declare-function treesit-node-next-sibling "treesit.c")
+(declare-function treesit-node-type "treesit.c")
+(declare-function treesit-node-child "treesit.c")
+(declare-function treesit-node-end "treesit.c")
+(declare-function treesit-node-start "treesit.c")
+(declare-function treesit-node-string "treesit.c")
 
 (defgroup ruby-ts nil
   "Major mode for editing Ruby code."