diff --git a/lib/hexo/default_config.js b/lib/hexo/default_config.js
index ecf688faf8..3ef8cdd87d 100644
--- a/lib/hexo/default_config.js
+++ b/lib/hexo/default_config.js
@@ -47,6 +47,7 @@ module.exports = {
     tab_replace: '',
     wrap: true,
     exclude_languages: [],
+    language_attr: false,
     hljs: false
   },
   prismjs: {
diff --git a/lib/plugins/tag/code.js b/lib/plugins/tag/code.js
index 4b2fdd07f0..9d0c9b4e19 100644
--- a/lib/plugins/tag/code.js
+++ b/lib/plugins/tag/code.js
@@ -185,7 +185,8 @@ module.exports = ctx => function codeTag(args, content) {
       mark,
       tab: hljsCfg.tab_replace,
       autoDetect: hljsCfg.auto_detect,
-      wrap: typeof wrap === 'boolean' ? wrap : hljsCfg.wrap
+      wrap: typeof wrap === 'boolean' ? wrap : hljsCfg.wrap,
+      languageAttr: hljsCfg.language_attr
     };
 
     if (!highlight) highlight = require('hexo-util').highlight;