diff --git a/ChangeLog b/ChangeLog
index b062b0fe2..acd485070 100755
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,8 @@ $Source$
 
       TODO: for mysqli
 
+    * left.php: undefined variable
+
 2004-06-09 Alexander M. Turek  <me@derrabus.de>
     ### 2.5.7 released from MAINT_2_5 branch.
 
diff --git a/left.php b/left.php
index a417cfa7c..40f926490 100644
--- a/left.php
+++ b/left.php
@@ -408,7 +408,7 @@ echo "\n";
         <a class="item" href="main.php?<?php echo PMA_generate_common_url(); ?>"><span class="heada"><b><?php echo $strHome; ?></b></span></a>
 <?php
 // Logout for advanced authentication
-if ($cfg['Server']['auth_type'] != 'config') {
+if (isset($cfg['Server']['auth_type']) && $cfg['Server']['auth_type'] != 'config') {
 ?>
         - <a class="item" href="index.php?<?php echo PMA_generate_common_url(); ?>&amp;old_usr=<?php echo urlencode($PHP_AUTH_USER); ?>" target="_parent"><span class="heada"><b><?php echo $strLogout; ?></b></span></a>
 <?php