diff --git a/modules/init-smooth-scroll.el b/modules/init-smooth-scroll.el
index ddf698a1..bf059f68 100644
--- a/modules/init-smooth-scroll.el
+++ b/modules/init-smooth-scroll.el
@@ -69,6 +69,7 @@ nil, smooth scrolling will be disabled.  For example:
 (defvar smooth-scroll-previous-window (selected-window))
 
 
+(require 'mwheel)
 ;;; Minor mode
 
 (define-minor-mode smooth-scroll-mode