diff --git a/_layouts/default.html b/_layouts/default.html
index d9388b3..5bd0f54 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -16,6 +16,7 @@
       MathJax = {
         tex: {
           inlineMath: [['$','$'], ['\\(','\\)']],
+          displayMath: [['$$', '$$'], ['\\[', '\\]']],
           processEscapes: true,
           tags: "ams",
           autoload: {