diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 6416cac14ef..a5b2a8366e8 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -159,7 +159,7 @@ function dol_shutdown()
 	global $conf,$user,$langs,$db;
 	$disconnectdone=false; $depth=0;
 	if (is_object($db) && ! empty($db->connected)) { $depth=$db->transaction_opened; $disconnectdone=$db->close(); }
-	dol_syslog("--- End access to ".$_SERVER["PHP_SELF"].($disconnectdone?' (Warn: db disconnection forced, transaction depth was '.$depth.')':''), ($disconnectdone?LOG_WARNING:LOG_DEBUG));
+	dol_syslog("--- End access to ".$_SERVER["PHP_SELF"].(($disconnectdone && $depth)?' (Warn: db disconnection forced, transaction depth was '.$depth.')':''), (($disconnectdone && $depth)?LOG_WARNING:LOG_DEBUG));
 }