diff --git a/docker/checkout.bash b/docker/checkout.bash
index d39d09914c3..8ca638bc1df 100755
--- a/docker/checkout.bash
+++ b/docker/checkout.bash
@@ -36,7 +36,7 @@ done
 # When brance is carma-develop or carma-master strip carma prefix
 if [[ "$BRANCH" == "carma-develop" ]]; then
       BRANCH=develop
-elif [[ "$BRANCH" == "carma-master"]]; then
+elif [[ "$BRANCH" == "carma-master"]] then
       BRANCH=master
 fi
 cd ${dir}/autoware.ai