diff --git a/docker/circle_docker_build.sh b/docker/circle_docker_build.sh
index 50841af6..54f7f825 100755
--- a/docker/circle_docker_build.sh
+++ b/docker/circle_docker_build.sh
@@ -1,13 +1,13 @@
-#!/bin/sh
-# execute from source root
-set -ex
-CACHE_DIR=~/docker_cache
-if [ -e ${CACHE_DIR}/em-builder.tar ] && md5sum -c ${CACHE_DIR}/dockerfile.md5sum
-then
-  docker load < ~/${CACHE_DIR}/em-builder.tar
-else
-  mkdir -p ${CACHE_DIR}
-  docker build -t yuya-oc/em-builder docker
-  md5sum Dockerfile > ${CACHE_DIR}/dockerfile.md5sum
-  docker save yuya-oc/em-builder > ${CACHE_DIR}/em-builder.tar
-fi
+#!/bin/sh
+# execute from source root
+set -ex
+CACHE_DIR=~/docker_cache
+if [ -e ${CACHE_DIR}/em-builder.tar ] && md5sum -c ${CACHE_DIR}/dockerfile.md5sum
+then
+  docker load < ~/${CACHE_DIR}/em-builder.tar
+else
+  mkdir -p ${CACHE_DIR}
+  docker build -t yuya-oc/em-builder docker
+  md5sum Dockerfile > ${CACHE_DIR}/dockerfile.md5sum
+  docker save yuya-oc/em-builder > ${CACHE_DIR}/em-builder.tar
+fi