diff --git a/build.sh b/build.sh
index ea50f599..c36b3355 100755
--- a/build.sh
+++ b/build.sh
@@ -15,7 +15,8 @@ docker run -it --name ${CONTAINER_NAME} \
   ${IMAGE_NAME} \
   /bin/bash -c "cd /home/builder/openwrt && bash"
 
-#TODO: copy config file to home
+docker cp ${CONTAINER_NAME}:.config ./.config-build
+docker cp ${CONTAINER_NAME}:defconfig.log ./defconfig.log
 
 docker cp ${CONTAINER_NAME}:${FIRMWARE_PATH} ./ras.bin 2>/dev/null || {
   echo "ERROR: Firmware not found at ${FIRMWARE_PATH}"