diff --git a/boot.php b/boot.php
index 6b49e795c..27bf921ce 100755
--- a/boot.php
+++ b/boot.php
@@ -1656,7 +1656,8 @@ function goaway($s) {
 
 function shutdown() {
 	global $db;
-	$db->close();
+	if($db)
+		$db->close();
 }
 
 /**