diff --git a/init/multi-emacs-config.el b/init/multi-emacs-config.el
index 1a0996b..5493a48 100644
--- a/init/multi-emacs-config.el
+++ b/init/multi-emacs-config.el
@@ -50,10 +50,14 @@
 (defvar emacs-config-directory
   (let ((config-dir (getenv "EMACS_CONFIG_DIR")))
     (if config-dir
-        (concat config-dir "/"
-                emacs-config-name "/")
-      (concat (getenv "HOME") "/.config/emacs/"
-              emacs-config-name "/")))
+	(format "%s/%s.%s"
+		config-dir
+		startkit-name
+		startkit-branch)
+      (format "%s/.config/emacs/%s.%s"
+	      (getenv "HOME")
+	      startkit-name
+	      startkit-branch)))
   "The based directory of emacs start configuration")
 
 (defvar startkit-info nil
@@ -66,7 +70,6 @@
 	  startkit-branch)
   "The base directory which Emacs startkit will be put")
 
-
 (defvar emacs-init-file
   (concat emacs-base-directory "/"
           "/init.el")