diff --git a/headers/private/kernel/arch/ppc/kernel.h b/headers/private/kernel/arch/ppc/kernel.h
deleted file mode 100644
index 61942bf0f6..0000000000
--- a/headers/private/kernel/arch/ppc/kernel.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-** Copyright 2001, Travis Geiselbrecht. All rights reserved.
-** Distributed under the terms of the NewOS License.
-*/
-#ifndef _PPC_KERNEL_H
-#define _PPC_KERNEL_H
-
-// memory layout
-#define KERNEL_BASE 0x80000000
-#define KERNEL_SIZE 0x80000000
-#define KERNEL_TOP  (KERNEL_BASE + (KERNEL_SIZE - 1))
-
-/*
-** User space layout is a little special:
-** The user space does not completely cover the space not covered by the kernel.
-** This is accomplished by starting user space at 1Mb and running to 64kb short of kernel space.
-** The lower 1Mb reserved spot makes it easy to find null pointer references and guarantees a
-** region wont be placed there. The 64kb region assures a user space thread cannot pass
-** a buffer into the kernel as part of a syscall that would cross into kernel space.
-*/
-#define USER_BASE   0x100000
-#define USER_SIZE   (0x80000000 - (0x10000 + 0x100000))
-#define USER_TOP    (USER_BASE + USER_SIZE)
-
-#define USER_STACK_REGION 0x70000000
-#define USER_STACK_REGION_SIZE (USER_BASE + (USER_SIZE - USER_STACK_REGION))
-
-#endif
diff --git a/src/system/boot/platform/openfirmware/arch/ppc/Jamfile b/src/system/boot/platform/openfirmware/arch/ppc/Jamfile
index c9ea45160a..9ddaa7abf3 100644
--- a/src/system/boot/platform/openfirmware/arch/ppc/Jamfile
+++ b/src/system/boot/platform/openfirmware/arch/ppc/Jamfile
@@ -1,6 +1,8 @@
 SubDir HAIKU_TOP src system boot platform openfirmware arch ppc ;
 
 SubDirHdrs $(HAIKU_TOP) src system boot platform $(TARGET_BOOT_PLATFORM) ;
+UsePrivateHeaders kernel [ FDirName kernel arch $(TARGET_ARCH) ] 
+	[ FDirName kernel boot platform $(HAIKU_BOOT_PLATFORM) ] ;
 
 SubDirC++Flags -fno-rtti ;