diff --git a/lisp/progmodes/elixir-ts-mode.el b/lisp/progmodes/elixir-ts-mode.el
index 52744f194a2..7edf42c2489 100644
--- a/lisp/progmodes/elixir-ts-mode.el
+++ b/lisp/progmodes/elixir-ts-mode.el
@@ -590,10 +590,12 @@
 
 (defvar elixir-ts--thing-settings
   `((sexp (not (or (and named
-                        ,(rx bos (or "source" "comment") eos))
+                        ,(rx bos (or "source" "keywords" "comment")
+                             eos))
                    (and anonymous
-                        ,(rx (or "{" "}" "[" "]" "(" ")"
-                                 "do" "end"))))))
+                        ,(rx bos (or "{" "}" "[" "]" "(" ")" ","
+                                     "do" "end")
+                             eos)))))
     (list
      (or (and "\\`arguments\\'" ,#'elixir-ts--with-parens-0-p)
          (and "\\`unary_operator\\'" ,#'elixir-ts--with-parens-1-p)
diff --git a/lisp/progmodes/ruby-ts-mode.el b/lisp/progmodes/ruby-ts-mode.el
index 53fefe068b2..0ab9f30d70d 100644
--- a/lisp/progmodes/ruby-ts-mode.el
+++ b/lisp/progmodes/ruby-ts-mode.el
@@ -1179,11 +1179,12 @@ leading double colon is not added."
                                                   "then")
                                           eos))
                                 (and anonymous
-                                     ,(rx (or "do" "begin"
-                                              "if" "unless"
-                                              "def" "end"
-                                              "(" ")" "[" "]"
-                                              "{" "}" "|" "," ";"))))))
+                                     ,(rx bos (or "do" "begin"
+                                                  "if" "unless"
+                                                  "def" "end"
+                                                  "(" ")" "[" "]"
+                                                  "{" "}" "|" "," ";")
+                                          eos)))))
                  (list ,(cons (rx
                                bos
                                (or
diff --git a/test/lisp/progmodes/heex-ts-mode-tests.el b/test/lisp/progmodes/heex-ts-mode-tests.el
index 01c7ed0fcf1..816d4dd7158 100644
--- a/test/lisp/progmodes/heex-ts-mode-tests.el
+++ b/test/lisp/progmodes/heex-ts-mode-tests.el
@@ -24,7 +24,7 @@
 (require 'treesit)
 
 (ert-deftest heex-ts-mode-test-indentation ()
-  (skip-unless (treesit-ready-p 'heex))
+  (skip-unless (and (treesit-ready-p 'heex) (treesit-ready-p 'elixir)))
   (ert-test-erts-file (ert-resource-file "indent.erts")))
 
 (provide 'heex-ts-mode-tests)