diff --git a/UI/WebServerResources/generic.js b/UI/WebServerResources/generic.js
index 010436986..28e30419a 100644
--- a/UI/WebServerResources/generic.js
+++ b/UI/WebServerResources/generic.js
@@ -903,8 +903,11 @@ function onContactAdd(node)
     selectorUrl = ("?selectorId="
                    + node.parentNode.parentNode.getAttribute("id"));
 
-  urlstr = (ApplicationBaseURL + "/../../" + UserLogin + "/Contacts/"
-            + contactSelectorAction + selectorUrl);
+  urlstr = ApplicationBaseURL;
+  if (urlstr[urlstr.length-1] != '/')
+    urlstr += '/';
+  urlstr += ("../../" + UserLogin + "/Contacts/"
+             + contactSelectorAction + selectorUrl);
   log (urlstr);
   var w = window.open(urlstr, "Addressbook",
                       "width=640,height=400,resizable=1,scrollbars=1,toolbar=0,"