diff --git a/lisp/2048.el b/lisp/2048.el
index 80acdbf..0fde0e0 100644
--- a/lisp/2048.el
+++ b/lisp/2048.el
@@ -34,6 +34,7 @@
 
 ;;; Code:
 
+(require 'dash)
 (defvar 2048--cell-width 6
   "Width of number cells for 2048. Should be at least 4 to fit \"2048\".")
 (defvar 2048--board-size 4