diff --git a/ChangeLog b/ChangeLog
index c83b8e67f..0ef6e084c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -14,6 +14,7 @@ $HeadURL$
 - bug #1717339 Missing header when deleting a checked column,
   thanks to Michael Keck
 - bug #1717477 Warning on Query page when db is empty
+- bug #1721002 db rename -> undefined cfgRelation, thanks to Juergen Wind
 
 2.10.1.0 (2007-04-23)
 =====================
diff --git a/libraries/Table.class.php b/libraries/Table.class.php
index a01fc0a6c..c72531714 100644
--- a/libraries/Table.class.php
+++ b/libraries/Table.class.php
@@ -466,7 +466,7 @@ class PMA_Table {
     {
         $last_id = -1;
 
-        if ($GLOBALS['cfgRelation'][$work]) {
+        if (isset($GLOBALS['cfgRelation']) && $GLOBALS['cfgRelation'][$work]) {
             $select_parts = array();
             $row_fields = array();
             foreach ($get_fields as $get_field) {