diff --git a/Kernel/Jail.h b/Kernel/Jail.h
index 355c15c4ab..2e9985762c 100644
--- a/Kernel/Jail.h
+++ b/Kernel/Jail.h
@@ -17,6 +17,7 @@
 #include <Kernel/KString.h>
 #include <Kernel/Library/LockRefPtr.h>
 #include <Kernel/Locking/SpinlockProtected.h>
+#include <Kernel/Process.h>
 
 namespace Kernel {