diff --git a/.sawfish/rc b/.sawfish/rc
index 140cb1b..cfb3a16 100644
--- a/.sawfish/rc
+++ b/.sawfish/rc
@@ -7,6 +7,7 @@
 (require 'sawfish.wm.util.display-window)
 (require 'sawfish.wm.util.prompt)
 (require 'sawfish.wm.util.window-order)
+(require 'sawfish.wm.util.stacking)
 
 (define oni:window-packing-keymap (make-keymap))
 (define oni:window-growing-keymap (make-keymap))