From f0f2835708b906858edb568ed309191f07e95030 Mon Sep 17 00:00:00 2001
From: Sukhwinder Dhillon <sukhwinder33445@gmail.com>
Date: Mon, 4 Jul 2022 09:50:11 +0200
Subject: [PATCH] Module: Don't pass null as param to `class_exists()`

---
 library/Icinga/Application/Modules/Module.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/Icinga/Application/Modules/Module.php b/library/Icinga/Application/Modules/Module.php
index 97650659f..00a33838e 100644
--- a/library/Icinga/Application/Modules/Module.php
+++ b/library/Icinga/Application/Modules/Module.php
@@ -1036,7 +1036,7 @@ class Module
     public function providesSetupWizard()
     {
         $this->launchConfigScript();
-        if (class_exists($this->setupWizard)) {
+        if ($this->setupWizard && class_exists($this->setupWizard)) {
             $wizard = new $this->setupWizard;
             return $wizard instanceof SetupWizard;
         }