diff --git a/phpgwapi/inc/class.db_backup.inc.php b/phpgwapi/inc/class.db_backup.inc.php
index 10ad6280aa..747ebf711c 100644
--- a/phpgwapi/inc/class.db_backup.inc.php
+++ b/phpgwapi/inc/class.db_backup.inc.php
@@ -232,20 +232,27 @@
 				}
 				if ($table)	// do we already reached the data part
 				{
+					$import = true;
 					$data = $this->csv_split($line,$cols);
-
-					if (count($data) == count($cols))
-					{
-						if ($convert_to_system_charset && !$this->db->capabilities['client_encoding'])
-						{
-							$translation->convert($data,$charset);
-						}
-						$this->db->insert($table,$data,False,__LINE__,__FILE__,'all-apps',true);
-					}
-					else 
-					{
-						echo '<p>'.lang("Line %1: '%2'<br><b>csv data does not match column-count of table %3 ==> ignored</b>",$n,$line,$table)."</p>\n";
+					if ($table == 'egw_async' && in_array('##last-check-run##',$data)) {
+						echo '<p>'.lang("Line %1: '%2'<br><b>csv data does contain ##last-check-run## of table %3 ==> ignored</b>",$n,$line,$table)."</p>\n";
 						echo 'data=<pre>'.print_r($data,true)."</pre>\n";
+						$import = false;
+					}
+					if ($import) {
+						if (count($data) == count($cols))
+						{
+							if ($convert_to_system_charset && !$this->db->capabilities['client_encoding'])
+							{
+								$translation->convert($data,$charset);
+							}
+							$this->db->insert($table,$data,False,__LINE__,__FILE__,'all-apps',true);
+						}
+						else 
+						{
+							echo '<p>'.lang("Line %1: '%2'<br><b>csv data does not match column-count of table %3 ==> ignored</b>",$n,$line,$table)."</p>\n";
+							echo 'data=<pre>'.print_r($data,true)."</pre>\n";
+						}
 					}
 				}
 			}
@@ -501,4 +508,4 @@ $line = '"de","ranking","use \\"yes\\", or \\"no, prefession\\"","benützen Sie
 
 echo "<p>line='$line'</p>\n";
 echo "<pre>".print_r(db_backup::csv_split($line),true)."</pre>\n";
-*/
\ No newline at end of file
+*/