diff --git a/htdocs/core/class/CMailFile.class.php b/htdocs/core/class/CMailFile.class.php
index 92acf87898a..1df1ee37122 100644
--- a/htdocs/core/class/CMailFile.class.php
+++ b/htdocs/core/class/CMailFile.class.php
@@ -1711,7 +1711,7 @@ class CMailFile
 			// tls smtp start with no encryption
 			//if (!empty($conf->global->MAIN_MAIL_EMAIL_STARTTLS) && function_exists('openssl_open')) $host='tls://'.$host;
 
-			dol_syslog("Try socket connection to host=".$host." port=".$port);
+			dol_syslog("Try socket connection to host=".$host." port=".$port." timeout=".$timeout);
 			//See if we can connect to the SMTP server
 			$errno = 0; $errstr = '';
 			if ($socket = @fsockopen(