diff --git a/docs/example.httpd.conf b/docs/example.httpd.conf
index f98b505f2..67127424c 100644
--- a/docs/example.httpd.conf
+++ b/docs/example.httpd.conf
@@ -34,6 +34,7 @@ SSLStaplingCache "shmcb:logs/ssl_stapling(32768)"
          downgrade-1.0 force-response-1.0
   Protocols h2 http/1.1
   LimitRequestBody 157286400
+  AddType application/javascript mjs
   ProxyPass / http://localhost:3000/ upgrade=websocket
   ProxyPassReverse / http://localhost:3000/
 </VirtualHost>