diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 9dc81e82..0f6fa52c 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -254,7 +254,7 @@ module ApplicationHelper
     common.cancel             common.ok
     common.ajaxError
     }.each do |s|
-      js << "i18n['#{s}'] = '#{t(s)}';\n"
+      js << "i18n['#{s}'] = '#{ t(s).gsub(/'/, "\\\\'") }';\n"
     end
     return js
   end