diff --git a/src/main/webapp/WEB-INF/web.xml b/src/main/webapp/WEB-INF/web.xml
index 93ec55a..694e18d 100644
--- a/src/main/webapp/WEB-INF/web.xml
+++ b/src/main/webapp/WEB-INF/web.xml
@@ -25,7 +25,7 @@
     <servlet-class>biz.redsoft.ncore.server.NcoreApplicationServlet</servlet-class>
     <init-param>
       <description>Vaadin application class to start</description>
-      <param-name>application</param-name>
+      <param-name>UI</param-name>
       <param-value>biz.redsoft.ncore.client.vaadin.WebApplication</param-value>
     </init-param>
     <init-param>
@@ -48,4 +48,7 @@
   <welcome-file-list>
     <welcome-file>client</welcome-file>
   </welcome-file-list>
+  <listener>
+    <listener-class>biz.redsoft.ncore.client.vaadin.VaadinSessionListener</listener-class>
+  </listener>
 </web-app>