diff --git a/cuda-mode.el b/cuda-mode.el
index b1af9aa..18a083a 100644
--- a/cuda-mode.el
+++ b/cuda-mode.el
@@ -25,6 +25,7 @@
 ;;; Code:
 
 (require 'cc-mode)
+(require 'cl)
 
 ;; These are only required at compile time to get the sources for the
 ;; language constants.  (The cc-fonts require and the font-lock