diff --git a/modules/lang/sh/config.el b/modules/lang/sh/config.el
index 3e64a59f4..ed0f1c5da 100644
--- a/modules/lang/sh/config.el
+++ b/modules/lang/sh/config.el
@@ -34,14 +34,16 @@
   ;; 1. Fontifies variables in double quotes
   ;; 2. Fontify command substitution in double quotes
   ;; 3. Fontify built-in/common commands (see `+sh-builtin-keywords')
-  (font-lock-add-keywords
-   'sh-mode `((+sh--match-variables-in-quotes
-               (1 'font-lock-constant-face prepend)
-               (2 'font-lock-variable-name-face prepend))
-              (+sh--match-command-subst-in-quotes
-               (1 'sh-quoted-exec prepend))
-              (,(regexp-opt +sh-builtin-keywords 'words)
-               (0 'font-lock-type-face append))))
+  (defun +sh|init-extra-fontification ()
+    (font-lock-add-keywords
+     nil `((+sh--match-variables-in-quotes
+            (1 'font-lock-constant-face prepend)
+            (2 'font-lock-variable-name-face prepend))
+           (+sh--match-command-subst-in-quotes
+            (1 'sh-quoted-exec prepend))
+           (,(regexp-opt +sh-builtin-keywords 'words)
+            (0 'font-lock-type-face append)))))
+  (add-hook 'sh-mode-hook #'+sh|init-extra-fontification)
   ;; 4. Fontify delimiters by depth
   (add-hook 'sh-mode-hook #'rainbow-delimiters-mode)