diff --git a/public/js/extra.js b/public/js/extra.js
index 0f67f8fb2..ba61a669c 100644
--- a/public/js/extra.js
+++ b/public/js/extra.js
@@ -904,7 +904,14 @@ md.use(require('markdown-it-mark'));
md.use(require('markdown-it-ins'));
md.use(require('markdown-it-sub'));
md.use(require('markdown-it-sup'));
-md.use(require('markdown-it-mathjax'));
+md.use(require('markdown-it-mathjax')({
+ beforeMath: '',
+ afterMath: '',
+ beforeInlineMath: '\\(',
+ afterInlineMath: '\\)',
+ beforeDisplayMath: '\\[',
+ afterDisplayMath: '\\]'
+}));
md.use(require('markdown-it-imsize'));
md.use(require('markdown-it-emoji'), {