diff --git a/init.el b/init.el
index 5eb8da7821851eaa6594de4a287fd2c1f22fc9c8..fc842195a1356c42a76c0a1a63cf7d8a35f7dc30 100644
--- a/init.el
+++ b/init.el
@@ -98,6 +98,7 @@
   (require-package 'org2ctex)
   (require-package 'org-autolist)
   (require-package 'org-plus-contrib)
+  (require-package 'org-ac)
   
   (add-to-list 'auto-mode-alist '("\\.org\\'" . org-mode))
   (add-hook 'org-mode-hook 'turn-on-font-lock)