diff --git a/database-update.sql b/database-update.sql
index c2e76dc4ca..abf621e766 100644
--- a/database-update.sql
+++ b/database-update.sql
@@ -9,3 +9,4 @@ ALTER TABLE  `ports` ADD  `port_descr_type` VARCHAR( 32 ) NULL DEFAULT NULL AFTE
 CREATE TABLE `frequency` ( `freq_id` int(11) NOT NULL auto_increment, `device_id` int(11) NOT NULL default '0', `freq_oid` varchar(64) NOT NULL, `freq_index` varchar(8) NOT NULL, `freq_type` varchar(32) NOT NULL, `freq_descr` varchar(32) NOT NULL default '', `freq_precision` int(11) NOT NULL default '1', `freq_current` float default NULL, `freq_limit` float default NULL, `freq_limit_low` float default NULL, PRIMARY KEY  (`freq_id`), KEY `freq_host` (`device_id`)) ENGINE=MyISAM AUTO_INCREMENT=189 DEFAULT CHARSET=latin1;
 ALTER TABLE  `temperature` CHANGE  `temp_index`  `temp_index` int(11) NOT NULL;
 CREATE TABLE `current` ( `current_id` int(11) NOT NULL auto_increment, `device_id` int(11) NOT NULL default '0', `current_oid` varchar(64) NOT NULL, `current_index` varchar(8) NOT NULL, `current_type` varchar(32) NOT NULL, `current_descr` varchar(32) NOT NULL default '', `current_precision` int(11) NOT NULL default '1', `current_current` float default NULL, `current_limit` float default NULL, `current_limit_warn` float default NULL, `current_limit_low` float default NULL, PRIMARY KEY  (`current_id`), KEY `current_host` (`device_id`)) ENGINE=MyISAM AUTO_INCREMENT=189 DEFAULT CHARSET=latin1;
+ALTER TABLE `devices` ADD `serial` text default NULL;
diff --git a/poll-device.php b/poll-device.php
index 9c15d742ac..598ad62cc5 100755
--- a/poll-device.php
+++ b/poll-device.php
@@ -175,6 +175,12 @@ while ($device = mysql_fetch_array($device_query)) {
   unset( $update ) ;
   unset( $seperator) ;
 
+  if ( $serial && $serial != $device['serial'] ) {
+    $poll_update .= $poll_separator . "`serial` = '".mres($serial)."'";
+    $poll_separator = ", ";
+    eventlog("Serial -> $serial", $device['device_id']);
+  }
+
   if ( $sysContact && $sysContact != $device['sysContact'] ) {
     $poll_update .= $poll_separator . "`sysContact` = '".mres($sysContact)."'";
     $poll_separator = ", ";