diff --git a/web/src/main/webapp/WEB-INF/web.xml b/web/src/main/webapp/WEB-INF/web.xml
index 73154e3..1362728 100644
--- a/web/src/main/webapp/WEB-INF/web.xml
+++ b/web/src/main/webapp/WEB-INF/web.xml
@@ -28,11 +28,13 @@
         </web-resource-collection>
         <auth-constraint>
             <role-name>admin</role-name>
+            <role-name>viewer</role-name>
         </auth-constraint>
     </security-constraint>
 
     <security-role>
         <role-name>admin</role-name>
+        <role-name>viewer</role-name>
     </security-role>
 
     <login-config>