diff --git a/Kernel/FileSystem/Mount.h b/Kernel/FileSystem/Mount.h
index 57790ad043..065f2766fe 100644
--- a/Kernel/FileSystem/Mount.h
+++ b/Kernel/FileSystem/Mount.h
@@ -7,6 +7,7 @@
 #pragma once
 
 #include <AK/NonnullRefPtr.h>
+#include <Kernel/FileSystem/Custody.h>
 #include <Kernel/Forward.h>
 
 namespace Kernel {