diff --git a/emacs/module/module-change-history.el b/emacs/module/module-change-history.el
index c0545cb..f578fe0 100644
--- a/emacs/module/module-change-history.el
+++ b/emacs/module/module-change-history.el
@@ -9,6 +9,9 @@
 (require 'module-pkg)
 
 (pkg/require 'why-this)
+(global-why-this-mode)
+
+(global-set-key (kbd "C-x W") 'why-this-annotate)
 
 (provide 'module-change-history)