diff --git a/app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php b/app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php
index c57226baa1e..94e9fae48a6 100644
--- a/app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php
+++ b/app/code/core/Mage/Adminhtml/Block/Widget/Tabs.php
@@ -123,7 +123,7 @@ public function addTab($tabId, $tab)
             }
 
             if (!($this->_tabs[$tabId] instanceof Mage_Adminhtml_Block_Widget_Tab_Interface)) {
-                throw new Exception(Mage::helper('adminhtml')->__('Wrong tab configuration.'));
+                throw new Exception(Mage::helper('adminhtml')->__('Wrong tab configuration for %s %s.', $tabId, $tab));
             }
         } else {
             throw new Exception(Mage::helper('adminhtml')->__('Wrong tab configuration.'));
diff --git a/app/locale/en_US/Mage_Adminhtml.csv b/app/locale/en_US/Mage_Adminhtml.csv
index 95815359507..61a65307dcc 100644
--- a/app/locale/en_US/Mage_Adminhtml.csv
+++ b/app/locale/en_US/Mage_Adminhtml.csv
@@ -1247,6 +1247,7 @@
 "Wrong newsletter template.","Wrong newsletter template."
 "Wrong quote item.","Wrong quote item."
 "Wrong tab configuration.","Wrong tab configuration."
+"Wrong tab configuration for %s %s.","Wrong tab configuration for %s %s."
 "Wrong tag was specified.","Wrong tag was specified."
 "Wrong transaction ID specified.","Wrong transaction ID specified."
 "XML","XML"