diff --git a/contrib/lisp/org-contacts.el b/contrib/lisp/org-contacts.el
index d849e7fdf..be656c137 100644
--- a/contrib/lisp/org-contacts.el
+++ b/contrib/lisp/org-contacts.el
@@ -42,6 +42,8 @@
 (eval-and-compile
   (require 'org))
 (require 'gnus-util)
+(require 'gnus-art)
+(require 'mai-utils)
 (require 'org-agenda)
 (require 'org-capture)