From d1824b237bfcee63ef70c3ac28ff0b2ef511c64e Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien@potencier.org>
Date: Wed, 20 Dec 2023 20:50:18 +0100
Subject: [PATCH] Fix bug

---
 src/Extension/SandboxExtension.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Extension/SandboxExtension.php b/src/Extension/SandboxExtension.php
index f3cba163d1..7fe17df3ea 100644
--- a/src/Extension/SandboxExtension.php
+++ b/src/Extension/SandboxExtension.php
@@ -24,7 +24,7 @@ final class SandboxExtension extends AbstractExtension
     private bool $sandboxedGlobally;
     private bool $sandboxed = false;
     private SecurityPolicyInterface $policy;
-    private SourcePolicyInterface $sourcePolicy;
+    private ?SourcePolicyInterface $sourcePolicy;
 
     public function __construct(SecurityPolicyInterface $policy, $sandboxed = false, SourcePolicyInterface $sourcePolicy = null)
     {