diff --git a/infolog/setup/tables_update.inc.php b/infolog/setup/tables_update.inc.php
index 36f8860e5c..e321f598e2 100644
--- a/infolog/setup/tables_update.inc.php
+++ b/infolog/setup/tables_update.inc.php
@@ -941,7 +941,7 @@ function infolog_upgrade16_1_003()
 {
 	// copy full info_addr to info_des, if length(info_from)+length(info_addr)+2 > 255 and then shorten it to fit
 	$GLOBALS['egw_setup']->db->query("UPDATE egw_infolog SET info_des=".
-		$GLOBALS['egw_setup']->db->concat('info_addr', "\n\n", 'info_des').
+		$GLOBALS['egw_setup']->db->concat('info_addr', "'\n\n'", 'info_des').
 		" WHERE LENGTH(info_from)+LENGTH(info_addr > 253", __LINE__, __FILE__);
 
 	$GLOBALS['egw_setup']->db->query("UPDATE egw_infolog SET info_from = CASE WHEN info_from != '' THEN SUBSTRING(".