diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 3b9348a0c1a496244575dced7f89303ae78b168d..0db89106854e76e2604146dc32ac44ff17792f2e 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -250,8 +250,8 @@ archclean:
 PHONY += kvmconfig
 kvmconfig:
 	$(if $(wildcard $(objtree)/.config),, $(error You need an existing .config for this target))
-	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config arch/x86/configs/kvm_guest.config
-	$(Q)yes "" | $(MAKE) oldconfig
+	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree) $(objtree)/.config $(srctree)/arch/x86/configs/kvm_guest.config
+	$(Q)yes "" | $(MAKE) -f $(srctree)/Makefile oldconfig
 
 define archhelp
   echo  '* bzImage      - Compressed kernel image (arch/x86/boot/bzImage)'