diff --git a/oni-elisp/oni-elisp.el b/oni-elisp/oni-elisp.el
index 18c6426..f5211b4 100644
--- a/oni-elisp/oni-elisp.el
+++ b/oni-elisp/oni-elisp.el
@@ -4,7 +4,7 @@
 
 ;; Author: Tom Willemse <tom@ryuslash.org>
 ;; Keywords: local
-;; Version: 2020.0616.215511
+;; Version: 2020.0616.221949
 ;; Package-Requires: (oni-company oni-flycheck oni-paredit oni-fci oni-yasnippet oni-hydra rainbow-delimiters nameless erefactor flycheck-relint handle elisp-format)
 
 ;; This program is free software; you can redistribute it and/or modify
@@ -45,6 +45,16 @@
   (expand-file-name "snippets" oni-elisp-root)
   "The directory where ‘oni-elisp’ stores its snippets.")
 
+(font-lock-add-keywords
+ 'emacs-lisp-mode
+ `((,(rx symbol-start
+         (group (or "t"
+                    "nil"
+                    (and digit
+                         (minimal-match (zero-or-more (any digit ?.))))))
+         symbol-end)
+    1 font-lock-constant-face)))
+
 ;;;###autoload
 (defun oni-elisp-snippets-initialize ()
   "Initialize the snippets for ‘oni-elisp’."