diff --git a/Makefile.unix b/Makefile.unix
index 4df0773eb9c..52fe9cdc5c8 100644
--- a/Makefile.unix
+++ b/Makefile.unix
@@ -521,6 +521,7 @@ savedefconfig: do_savedefconfig
 	$(Q) APPSDIR=${CONFIG_APPS_DIR} kconfig-conf --savedefconfig defconfig Kconfig
 	$(Q) sed -i -e "/CONFIG_APPS_DIR=/d" defconfig
 	$(Q) grep "CONFIG_ARCH=" .config >> defconfig
+	$(Q) grep "^CONFIG_ARCH_CHIP_" .config >> defconfig
 	$(Q) grep "CONFIG_ARCH_BOARD=" .config >> defconfig
 
 # export
diff --git a/Makefile.win b/Makefile.win
index 06a0d9aa277..5a096b0dcce 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -507,6 +507,7 @@ savedefconfig: do_savedefconfig
 	$(Q) set APPSDIR=$(patsubst "%",%,${CONFIG_APPS_DIR})& kconfig-conf --savedefconfig defconfig Kconfig
 	$(Q) sed -i -e "/CONFIG_APPS_DIR=/d" defconfig
 	$(Q) grep "CONFIG_ARCH=" .config >> defconfig
+	$(Q) grep "^CONFIG_ARCH_CHIP_" .config >> defconfig
 	$(Q) grep "CONFIG_ARCH_BOARD=" .config >> defconfig
 
 # export