From 32dea6bde58ff2c07c757392ffabd99a691ad62e Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Sun, 3 Apr 2022 21:41:56 +0200
Subject: [PATCH] Kernel: Add missing include to PageDirectory.h

---
 Kernel/Memory/PageDirectory.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Kernel/Memory/PageDirectory.h b/Kernel/Memory/PageDirectory.h
index 2e09106e0b..8aecc3c049 100644
--- a/Kernel/Memory/PageDirectory.h
+++ b/Kernel/Memory/PageDirectory.h
@@ -12,6 +12,7 @@
 #include <AK/RefCounted.h>
 #include <AK/RefPtr.h>
 #include <Kernel/Forward.h>
+#include <Kernel/Locking/Spinlock.h>
 #include <Kernel/Memory/PhysicalPage.h>
 
 namespace Kernel::Memory {