diff --git a/lib/plugins/filter/after_post_render/external_link.js b/lib/plugins/filter/after_post_render/external_link.js
index a056a5a525..e8297de1df 100644
--- a/lib/plugins/filter/after_post_render/external_link.js
+++ b/lib/plugins/filter/after_post_render/external_link.js
@@ -3,8 +3,8 @@
 const { parse } = require('url');
 
 const isExternal = (url, config) => {
-  const exclude = Array.isArray(config.external_link.exclude) ? config.external_link.exclude :
-    [config.external_link.exclude];
+  const exclude = Array.isArray(config.external_link.exclude) ? config.external_link.exclude
+    : [config.external_link.exclude];
   const data = parse(url);
   const host = data.hostname;
   const sitehost = parse(config.url).hostname || config.url;
@@ -25,16 +25,16 @@ const isExternal = (url, config) => {
 function externalLinkFilter(data) {
   const { config } = this;
 
-  if (typeof config.external_link === 'undefined' || typeof config.external_link === 'object' ||
-    config.external_link === true) {
+  if (typeof config.external_link === 'undefined' || typeof config.external_link === 'object'
+    || config.external_link === true) {
     config.external_link = Object.assign({
       enable: true,
       field: 'site',
       exclude: ''
     }, config.external_link);
   }
-  if (config.external_link === false || config.external_link.enable === false ||
-    config.external_link.field !== 'post') return;
+  if (config.external_link === false || config.external_link.enable === false
+    || config.external_link.field !== 'post') return;
 
   data.content = data.content.replace(/<a.*?(href=['"](.*?)['"]).*?>/gi, (str, hrefStr, href) => {
     if (/target=/gi.test(str) || !isExternal(href, config)) return str;
diff --git a/lib/plugins/filter/after_render/external_link.js b/lib/plugins/filter/after_render/external_link.js
index fd3d7b4ea8..1854944ef3 100644
--- a/lib/plugins/filter/after_render/external_link.js
+++ b/lib/plugins/filter/after_render/external_link.js
@@ -9,8 +9,8 @@ const { parse } = require('url');
  * @returns {Boolean} True if the link doesn't have protocol or link has same host with config.url
  */
 const isExternal = (url, config) => {
-  const exclude = Array.isArray(config.external_link.exclude) ? config.external_link.exclude :
-    [config.external_link.exclude];
+  const exclude = Array.isArray(config.external_link.exclude) ? config.external_link.exclude
+    : [config.external_link.exclude];
   const data = parse(url);
   const host = data.hostname;
   const sitehost = parse(config.url).hostname || config.url;
@@ -31,16 +31,16 @@ const isExternal = (url, config) => {
 function externalLinkFilter(data) {
   const { config } = this;
 
-  if (typeof config.external_link === 'undefined' || typeof config.external_link === 'object' ||
-    config.external_link === true) {
+  if (typeof config.external_link === 'undefined' || typeof config.external_link === 'object'
+    || config.external_link === true) {
     config.external_link = Object.assign({
       enable: true,
       field: 'site',
       exclude: ''
     }, config.external_link);
   }
-  if (config.external_link === false || config.external_link.enable === false ||
-    config.external_link.field !== 'site') return;
+  if (config.external_link === false || config.external_link.enable === false
+    || config.external_link.field !== 'site') return;
 
   data = data.replace(/<a.*?(href=['"](.*?)['"]).*?>/gi, (str, hrefStr, href) => {
     if (/target=/gi.test(str) || !isExternal(href, config)) return str;