diff --git a/ChangeLog b/ChangeLog
index 51d6920b8..b17a3a50e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,9 @@
 2010-05-04  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* UI/WebServerResources/ContactsUI.js (initContacts): we must
-	configure the ab toolbar even when in popup mode.
+	configure the ab toolbar even when in popup mode, provided
+	"tabsContainer" does resolve to an existing element since the
+	script will be included for utility windows too.
 
 2010-05-04  Francis Lachapelle  <flachapelle@inverse.ca>
 
diff --git a/UI/WebServerResources/ContactsUI.js b/UI/WebServerResources/ContactsUI.js
index 1fc2cdfbd..4063f04de 100644
--- a/UI/WebServerResources/ContactsUI.js
+++ b/UI/WebServerResources/ContactsUI.js
@@ -1182,10 +1182,12 @@ function initContacts(event) {
         configureSelectionButtons();
     }
 
-    var controller = new SOGoTabsController();
     var tabsContainer = $("smallToolbarContainer");
-    controller.attachToTabsContainer(tabsContainer);
-    configureAbToolbar();
+    if (tabsContainer) {
+        var controller = new SOGoTabsController();
+        controller.attachToTabsContainer(tabsContainer);
+        configureAbToolbar();
+    }
 
     // Addressbook import form
     $("uploadCancel").observe("click", hideContactsImport);