diff --git a/mikutter.rb b/mikutter.rb
index 2f432a70..77b19d99 100755
--- a/mikutter.rb
+++ b/mikutter.rb
@@ -18,6 +18,7 @@ Mopt.parse exec_command: true
if !ENV['DISABLE_BUNDLER_SETUP'] || ['', '0'].include?(ENV['DISABLE_BUNDLER_SETUP'].to_s)
begin
+ ENV['MIKUTTER_CONFROOT'] = Mopt.confroot
ENV['BUNDLE_GEMFILE'] = File.expand_path(File.join(File.dirname($0), "Gemfile"))
require 'bundler/setup'
rescue LoadError, SystemExit
こんなんでいいのか