diff --git a/core/upgrade/upgrade.php b/core/upgrade/upgrade.php
index 01a0df57ca..0106913876 100644
--- a/core/upgrade/upgrade.php
+++ b/core/upgrade/upgrade.php
@@ -54,10 +54,14 @@
 //get the command line arguments
 	if(defined('STDIN')) {
 		//$application_name = $argv[0];
-		$upgrade_type = $argv[1];
-		//echo $upgrade_type."\n";
+		if (isset($argv[1])) {
+			$upgrade_type = $argv[1];
+		}
 	}
 
+//show the upgrade type
+	//echo $upgrade_type."\n";
+
 //run all app_defaults.php files
 	if ($upgrade_type == 'domains') {
 		require_once "resources/classes/config.php";