diff --git a/src/main/webapp/api/index.html b/src/main/webapp/api/index.html
index acbbcc60..b380811b 100644
--- a/src/main/webapp/api/index.html
+++ b/src/main/webapp/api/index.html
@@ -72,6 +72,7 @@
     &nbsp;
 </div>
 
+<h3 style="text-align: center">Authentication is required to access the REST API. Use HTTP Basic Authentication to authenticate yourself.</h3>
 <div id="swagger-ui-container" class="swagger-ui-wrap">
 
 </div>
