diff --git a/oni-c.el b/oni-c.el
index bbe37c2..24be34e 100644
--- a/oni-c.el
+++ b/oni-c.el
@@ -4,8 +4,8 @@
 
 ;; Author: Tom Willemse <tom@ryuslash.org>
 ;; Keywords: local
-;; Version: 2020.1210.205244
-;; Package-Requires: (oni-flycheck oni-fci)
+;; Version: 2020.1212.220101
+;; Package-Requires: (oni-flycheck oni-fci oni-lsp reformatter)
 
 ;; This program is free software; you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
@@ -27,17 +27,25 @@
 ;;; Code:
 
 (require 'cc-mode)
+(require 'reformatter)
 
 (defun oni-c--auto-fill-mode ()
   "Enable ‘auto-fill-mode’ only for comments."
   (setq-local comment-auto-fill-only-comments t)
   (auto-fill-mode))
 
+(reformatter-define oni-c-clang-formatter
+  :program "clang-format"
+  :lighter ""
+  :group 'oni-c)
+
 (add-hook 'c-mode-hook 'abbrev-mode)
 (add-hook 'c-mode-hook 'electric-indent-local-mode)
 (add-hook 'c-mode-hook 'electric-pair-local-mode)
 (add-hook 'c-mode-hook 'flycheck-mode)
+(add-hook 'c-mode-hook 'lsp)
 (add-hook 'c-mode-hook 'oni-c--auto-fill-mode)
+(add-hook 'c-mode-hook 'oni-c-clang-formatter-on-save-mode)
 
 (add-hook 'c-mode-hook
           (if (fboundp 'display-fill-column-indicator-mode)