diff --git a/app/models/site_server.rb b/app/models/site_server.rb
index f0773fd..dfe232c 100644
--- a/app/models/site_server.rb
+++ b/app/models/site_server.rb
@@ -41,6 +41,9 @@ class SiteServer
     if self.domain_name != '' && self.domain_names.length !=0
       self.domain_name = ''
     end
+    if !self.new_record? && self.account_changed?
+      SiteServerFileBackup.where(:backup_dir=>"/home/#{self.account_was}").update_all(:backup_dir=>"/home/{{user_name}}")
+    end
     tmp_site_constructs = site_constructs
     need_change = false
     if self.enable_redirect_default_domain_changed?