diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index db8f7070ce..50238c55a9 100755
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -66,6 +66,7 @@ $(obj)/coreboot.pre1: $(obj)/coreboot.bootblock $$(prebuilt-files) $(CBFSTOOL)
 	$(CBFSTOOL) $@ create $(CONFIG_COREBOOT_ROMSIZE_KB)K $(obj)/coreboot.bootblock
 	$(prebuild-files)
 else
+.PHONY: $(obj)/coreboot.pre1
 $(obj)/coreboot.pre1: $(CBFSTOOL)
 	mv $(obj)/coreboot.rom $@
 endif