diff --git a/lib/Doctrine/Connection.php b/lib/Doctrine/Connection.php
index 7e7f7f13e..a5e5042b2 100644
--- a/lib/Doctrine/Connection.php
+++ b/lib/Doctrine/Connection.php
@@ -1016,6 +1016,7 @@ abstract class Doctrine_Connection extends Doctrine_Configurable implements Coun
         $this->clear();
         
         $this->dbh = null;
+        $this->isConnected = false;
 
         $this->getAttribute(Doctrine::ATTR_LISTENER)->postClose($event);
     }