diff --git a/notebook/templates/notebook.html b/notebook/templates/notebook.html
index cb0f9fecc..268b50672 100644
--- a/notebook/templates/notebook.html
+++ b/notebook/templates/notebook.html
@@ -3,7 +3,7 @@
 {% block stylesheet %}
 
 {% if mathjax_url %}
-<script type="text/javascript" src="{{mathjax_url}}?config=TeX-AMS_HTML-full&delayStartupUntil=configured" charset="utf-8"></script>
+<script type="text/javascript" src="{{mathjax_url}}?config=TeX-AMS_HTML-full,Safe&delayStartupUntil=configured" charset="utf-8"></script>
 {% endif %}
 <script type="text/javascript">
 // MathJax disabled, set as null to distingish from *missing* MathJax,