diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 65077d79c846..309597386a77 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -1,6 +1,9 @@
 # Unified Makefile for i386 and x86_64
 
-# No need to remake these files
+# select defconfig based on actual architecture
+KBUILD_DEFCONFIG := $(ARCH)_defconfig
+
+# # No need to remake these files
 $(srctree)/arch/x86/Makefile%: ;
 
 ifeq ($(ARCH),i386)
diff --git a/arch/i386/defconfig b/arch/x86/configs/i386_defconfig
similarity index 100%
rename from arch/i386/defconfig
rename to arch/x86/configs/i386_defconfig
diff --git a/arch/x86_64/defconfig b/arch/x86/configs/x86_64_defconfig
similarity index 100%
rename from arch/x86_64/defconfig
rename to arch/x86/configs/x86_64_defconfig
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 83c5e76414ce..fbf39cc6afab 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -60,12 +60,12 @@ defconfig: $(obj)/conf
 ifeq ($(KBUILD_DEFCONFIG),)
 	$< -d arch/$(ARCH)/Kconfig
 else
-	@echo *** Default configuration is based on '$(KBUILD_DEFCONFIG)'
-	$(Q)$< -D arch/$(ARCH)/configs/$(KBUILD_DEFCONFIG) arch/$(ARCH)/Kconfig
+	@echo "*** Default configuration is based on '$(KBUILD_DEFCONFIG)'"
+	$(Q)$< -D arch/$(SRCARCH)/configs/$(KBUILD_DEFCONFIG) arch/$(ARCH)/Kconfig
 endif
 
 %_defconfig: $(obj)/conf
-	$(Q)$< -D arch/$(ARCH)/configs/$@ arch/$(ARCH)/Kconfig
+	$(Q)$< -D arch/$(SRCARCH)/configs/$@ arch/$(ARCH)/Kconfig
 
 # Help text used by make help
 help: