diff --git a/build-bash.sh b/build-bash.sh
index 41985e80132fb85af5bc5ea0c3bda9bfe6070444..bf546e78ec02ca73fa49981cb4259fbc9a321ac1 100755
--- a/build-bash.sh
+++ b/build-bash.sh
@@ -7,14 +7,15 @@ if [ "$#" -gt 0 ]; then
 else
     VERSION=$(git describe --tags $(git rev-list --tags --max-count=1) | tr -d v)
 fi
+AFACTORY_SCRIPT="acme-downloader-afactory.sh"
 BUILDTIME=$(date -u '+%Y-%m-%d_%H:%M:%S')
 REPO_DIR=$(dirname $0)
 if [[ "$REPO_DIR" = '.' ]]; then
     REPO_DIR=$(pwd)
 fi
 
-test -f acme-downloader-afactory.sh && rm -f acme-downloader-afactory.sh
-cp acme-downloader.sh acme-downloader-afactory.sh
+rm -f $AFACTORY_SCRIPT
+cp acme-downloader.sh $AFACTORY_SCRIPT
 
-sed -i s/VERSION_SET_BY_CI/$VERSION/ acme-downloader-afactory.sh
-sed -i s/BUILDTIME_SET_BY_CI/$BUILDTIME/ acme-downloader-afactory.sh
+sed -i s/VERSION_SET_BY_CI/$VERSION/ $AFACTORY_SCRIPT
+sed -i s/BUILDTIME_SET_BY_CI/$BUILDTIME/ $AFACTORY_SCRIPT