diff --git a/payment_settup.gemspec b/payment_settup.gemspec
index 1fe595b..c64194c 100644
--- a/payment_settup.gemspec
+++ b/payment_settup.gemspec
@@ -2,18 +2,23 @@ $:.push File.expand_path("../lib", __FILE__)
 
 # Maintain your gem's version:
 require "payment_settup/version"
-app_path = File.expand_path(__dir__)
-#Add payment to Admin area
-@payment_li = File.read(app_path+"/payment_li.erb")
-@file_text = File.read(ENV['PWD']+'/app/views/shared/_side_bar.html.erb')
-if !@file_text.include?('payment')
-  @insert_index = @file_text.index('<li title="<%= t(\'update_manager\') %>">')
-  @file_text.insert(@insert_index , @payment_li)
+bundle_update_flag = ARGV[0]=='update' || ARGV[0]=='install'
+if bundle_update_flag
+  app_path = File.expand_path(__dir__)
+  #Add payment to Admin area
+  @payment_li = File.read(app_path+"/payment_li.erb")
+  @file_text = File.read(ENV['PWD']+'/app/views/shared/_side_bar.html.erb')
+  if !@file_text.include?('payment')
+    @insert_index = @file_text.index('<li title="<%= t(\'update_manager\') %>">')
+    if !@insert_index.nil?
+      @file_text.insert(@insert_index , @payment_li)
+    end
+  end
+  f = File.open(ENV['PWD']+'/app/views/shared/_side_bar.html.erb','w')
+  f.write(@file_text)
+  f.close
+  puts "finish change payment setup in #{ENV['PWD']}/app/views/shared"
 end
-f = File.open(ENV['PWD']+'/app/views/shared/_side_bar.html.erb','w')
-f.write(@file_text)
-f.close
-puts "finish change payment setup in #{ENV['PWD']}/app/views/shared"
 # Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
   s.name        = "payment_settup"