diff --git a/docs_theme/main.html b/docs_theme/main.html
index b60b231c2..1a1175902 100644
--- a/docs_theme/main.html
+++ b/docs_theme/main.html
@@ -141,7 +141,7 @@
   <script src="{{ base_url }}/js/jquery-1.8.1-min.js"></script>
   <script src="{{ base_url }}/js/prettify-1.0.js"></script>
   <script src="{{ base_url }}/js/bootstrap-2.1.1-min.js"></script>
-  <script src="https://fund.django-rest-framework.org/sidebar_include.js"></script>
+  <script async src="https://fund.django-rest-framework.org/sidebar_include.js"></script>
   <script>var base_url = '{{ base_url }}';</script>
   <script src="{{ base_url }}/mkdocs/js/require.js"></script>
   <script src="{{ base_url }}/js/theme.js"></script>