diff --git a/board/esd/pf5200/config.mk b/board/esd/pf5200/config.mk
index 07b5de1..170779d 100644
--- a/board/esd/pf5200/config.mk
+++ b/board/esd/pf5200/config.mk
@@ -32,7 +32,7 @@
 #	0x00100000   boot from RAM (for testing only)
 #
 
-sinclude $(TOPDIR)/board/$(BOARDDIR)/config.tmp
+sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp
 
 ifndef TEXT_BASE
 ## Standard: boot high