diff --git a/inc/drivers_ldap.php b/inc/drivers_ldap.php
index 0019dd9d..6d465a65 100644
--- a/inc/drivers_ldap.php
+++ b/inc/drivers_ldap.php
@@ -170,6 +170,7 @@ class ldapDrivers
           $row[$arr[$j]] = count($arr[$arr[$j]])>2?$arr[$arr[$j]]:$arr[$arr[$j]][0];
         }
         $ret[]=$row;
+	unset($row);
       }
     }
     return $ret;