diff --git a/org-contacts.el b/org-contacts.el
index 9b08d67..f846fe2 100644
--- a/org-contacts.el
+++ b/org-contacts.el
@@ -36,6 +36,9 @@
 ;;
 ;;; Code:
 
+(eval-when-compile
+  (require 'cl))
+
 (eval-and-compile
   (require 'org))