diff --git a/_keysnail.js b/_keysnail.js
index 808642b..542fb3d 100644
--- a/_keysnail.js
+++ b/_keysnail.js
@@ -159,6 +159,7 @@ plugins.options["twitter_client.use_jmp"] = true;
 // エクステ
 
 ext.add("my-setpref2", function(){
+    // navigator.platform
     util.setPrefs(
         {
             "browser.cache.disk.parent_directory":"/tmp"
diff --git a/emacs.el b/emacs.el
index baabd13..af9515e 100644
--- a/emacs.el
+++ b/emacs.el
@@ -1604,6 +1604,8 @@ when SEC is nil, stop auto save if enabled."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; misc funcs
 
+(defalias 'qcalc 'quick-calc)
+
 ;; (when (require 'ansi-color nil t)
 ;;   (ansi-color-for-comint-mode-on))
 (defvar git-command-history nil