diff --git a/src/editor/index.js b/src/editor/index.js
index 72fb0c853..5cc2c3b2f 100644
--- a/src/editor/index.js
+++ b/src/editor/index.js
@@ -223,6 +223,12 @@ module.exports = config => {
      */
     RichTextEditor: em.get('RichTextEditor'),
 
+    /**
+     * @property {Parser}
+     * @private
+     */
+    Parser: em.get('Parser'),
+
     /**
      * @property {Utils}
      * @private
@@ -571,7 +577,7 @@ module.exports = config => {
      * Replace the default CSS parser with a custom one.
      * The parser function receives a CSS string as a parameter and expects
      * an array of CSSRule objects as a result. If you need to remove the
-     * custom parser, pass the `null` to this method
+     * custom parser, pass `null` as the argument
      * @param {Function|null} parser Parser function
      * @return {this}
      * @example
@@ -587,7 +593,7 @@ module.exports = config => {
      * });
      */
     setCustomParserCss(parser) {
-      em.setCustomParserCss(parser);
+      this.Parser.getConfig().parserCss = parser;
       return this;
     },
 
diff --git a/src/editor/model/Editor.js b/src/editor/model/Editor.js
index b757bd845..2c66604c0 100644
--- a/src/editor/model/Editor.js
+++ b/src/editor/model/Editor.js
@@ -641,13 +641,5 @@ module.exports = Backbone.Model.extend({
     } else {
       el[varName][name] = value;
     }
-  },
-
-  getCustomParserCss() {
-    return this.get('Parser').parserCss;
-  },
-
-  setCustomParserCss(parser) {
-    this.get('Parser').parserCss = parser;
   }
 });
diff --git a/src/parser/index.js b/src/parser/index.js
index 15d0cde39..8f714d5b8 100644
--- a/src/parser/index.js
+++ b/src/parser/index.js
@@ -19,6 +19,14 @@ module.exports = () => {
      */
     name: 'Parser',
 
+    /**
+     * Get config object
+     * @return {Object}
+     */
+    getConfig() {
+      return conf;
+    },
+
     /**
      * Initialize module. Automatically called with a new instance of the editor
      * @param {Object} config Configurations
@@ -36,8 +44,7 @@ module.exports = () => {
      */
     init(config = {}) {
       conf = { ...defaults, ...config };
-      this.parserCss = conf.parserCss || null;
-      this.parserHtml = conf.parserHtml || null;
+      conf.Parser = this;
       pHtml = new parserHtml(conf);
       pCss = new parserCss(conf);
       return this;
diff --git a/src/parser/model/ParserCss.js b/src/parser/model/ParserCss.js
index 6dad4cb2b..1e9666053 100644
--- a/src/parser/model/ParserCss.js
+++ b/src/parser/model/ParserCss.js
@@ -1,14 +1,13 @@
 import BrowserCssParser from './BrowserParserCss';
 
-module.exports = config => ({
+module.exports = (config = {}) => ({
   /**
    * Parse CSS string to a desired model object
    * @param  {String} str CSS string
    * @return {Array<Object>}
    */
   parse(str) {
-    const { em } = config;
-    const customParser = em.getCustomParserCss();
+    const customParser = config.parserCss;
     return customParser ? customParser(str) : BrowserCssParser(str);
   }
 });
diff --git a/test/specs/parser/model/ParserCss.js b/test/specs/parser/model/ParserCss.js
index 756fd5e4b..b49d7b332 100644
--- a/test/specs/parser/model/ParserCss.js
+++ b/test/specs/parser/model/ParserCss.js
@@ -351,35 +351,25 @@ module.exports = {
         var str = '.test1 { color:red }';
         var result = {
           selectors: ['test1'],
-          style: { color: 'red' }
+          style: { color: 'blue' }
         };
         obj = new ParserCss({
-          em: {
-            getCustomParserCss: () => () => [result]
-          }
+          parserCss: () => [result]
         });
         expect(obj.parse(str)).toEqual([result]);
       });
 
-      test.only('Parse CSS with custom async parser', done => {
+      test('Parse CSS with custom async parser', async () => {
         var str = '.test1 { color:red }';
         var result = {
           selectors: ['test1'],
-          style: { color: 'red' }
+          style: { color: 'blue' }
         };
         obj = new ParserCss({
-          em: {
-            getCustomParserCss: () => {
-              return async function() {
-                return [result];
-              };
-            }
-          }
-        });
-        obj.parse(str).then(res => {
-          expect(res).toEqual([result]);
-          done();
+          parserCss: async () => [result]
         });
+        const cssResult = await obj.parse(str);
+        expect(cssResult).toEqual([result]);
       });
     });
   }