diff --git a/.xbindkeysrc.scm b/.xbindkeysrc.scm
index 067aaa4..e78be50 100644
--- a/.xbindkeysrc.scm
+++ b/.xbindkeysrc.scm
@@ -6,7 +6,7 @@
 (define modkey 'mod4)
 (define dmenu-cmd "dmenu")
 (define dmenu-args "-b -nb '#000000' -nf '#15abc3' -sb '#e0c625' -sf '#000000'")
-(define dzen-pipe nil)
+(define dzen-pipe ())
 
 ;;; Macros
 (define-macro (cmd command)
@@ -41,7 +41,7 @@
 (define (switch-tags)
   "Switch to another tag"
   (close-pipe dzen-pipe)
-  (set! dzen-pipe nil)
+  (set! dzen-pipe ())
   (let* ((tags (get-tags))
          (tag (choose-tag "Switch to tag" tags)))
     (if (string? tag)