diff --git a/mu4e/mu4e-utils.el b/mu4e/mu4e-utils.el
index c652bd0f..f3831667 100644
--- a/mu4e/mu4e-utils.el
+++ b/mu4e/mu4e-utils.el
@@ -258,10 +258,8 @@ Function will return the cdr of the list element."
 	(if (file-accessible-directory-p
 	      (concat mu4e-maildir "/" mdir "/" (car dentry) "/cur"))
 	  (setq dirs (cons (concat mdir (car dentry)) dirs)))
-    (if (not (or (string-equal "cur" (car dentry))
-                 (string-equal "new" (car dentry))
-                 (string-equal "tmp" (car dentry))))
-        (setq dirs (append dirs (mu4e~get-maildirs-1 path
+	(unless (member (car dentry) '("cur" "new" "tmp")) 
+	  (setq dirs (append dirs (mu4e~get-maildirs-1 path
 				    (concat mdir (car dentry) "/")))))))
     dirs))