diff --git a/boot.php b/boot.php
index 86e61c6bc..7d359d011 100755
--- a/boot.php
+++ b/boot.php
@@ -1669,7 +1669,8 @@ function goaway($s) {
 
 function shutdown() {
 	global $db;
-	$db->close();
+	if($db)
+		$db->close();
 }
 
 /**