diff --git a/src/mibew/libs/classes/Mibew/Handlebars/Helper/JsStringHelper.php b/src/mibew/libs/classes/Mibew/Handlebars/Helper/JsStringHelper.php
deleted file mode 100644
index 23c885a1..00000000
--- a/src/mibew/libs/classes/Mibew/Handlebars/Helper/JsStringHelper.php
+++ /dev/null
@@ -1,44 +0,0 @@
-<?php
-/*
- * This file is a part of Mibew Messenger.
- *
- * Copyright 2005-2014 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-namespace Mibew\Handlebars\Helper;
-
-use Handlebars\Context;
-use Handlebars\Helper as HelperInterface;
-use Handlebars\Template;
-
-/**
- * Escapes special characters to use result as a valid JavaScript string
- * enclosed with single quotes (') or duouble quotes (").
- *
- * Example of usage:
- * <code>
- *   var a = "{{#jsString}}some string to escape{{/jsString}}";
- * </code>
- */
-class JsStringHelper implements HelperInterface
-{
-    /**
-     * {@inheritdoc}
-     */
-    public function execute(Template $template, Context $context, $args, $source)
-    {
-        return str_replace("\n", "\\n", addslashes($template->render($context)));
-    }
-}
diff --git a/src/mibew/libs/classes/Mibew/Handlebars/Helpers.php b/src/mibew/libs/classes/Mibew/Handlebars/Helpers.php
index 408aad71..5c856775 100644
--- a/src/mibew/libs/classes/Mibew/Handlebars/Helpers.php
+++ b/src/mibew/libs/classes/Mibew/Handlebars/Helpers.php
@@ -47,7 +47,6 @@ class Helpers extends BaseHelpers
         $this->add('ifEven', new Helper\IfEvenHelper());
         $this->add('ifOdd', new Helper\IfOddHelper());
         $this->add('generatePagination', new Helper\GeneratePaginationHelper());
-        $this->add('jsString', new Helper\JsStringHelper());
         $this->add('repeat', new Helper\RepeatHelper());
         $this->add('replace', new Helper\ReplaceHelper());
         $this->add('formatDate', new Helper\FormatDateHelper());