diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java b/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
index f1c2f26..12e48f4 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
@@ -47,6 +47,8 @@
 
     /**
      * Creates a new topology layout.
+     * @param username user name
+     * @param webSocket web socket
      */
     public UiTopoSession(String username, UiWebSocket webSocket) {
         this.username = username;