diff --git a/mirror-image/scripts/salt_bootstrap.sh b/mirror-image/scripts/salt_bootstrap.sh
index 8dec3ce..453c3fb 100644
--- a/mirror-image/scripts/salt_bootstrap.sh
+++ b/mirror-image/scripts/salt_bootstrap.sh
@@ -5,7 +5,7 @@
 SALTSTACK_GPG=${SALTSTACK_GPG:-"https://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3/SALTSTACK-GPG-KEY.pub"}
 SALTSTACK_REPO=${SALTSTACK_REPO:-"http://repo.saltstack.com/apt/ubuntu/16.04/amd64/2016.3 xenial main"}
 APT_MIRANTIS_GPG=${APT_MIRANTIS_GPG:-"http://apt.mirantis.com/public.gpg"}
-APT_MIRANTIS_SALT_REPO=${APT_MIRANTIS_SALT_REPO:-"http://apt.mirantis.com/xenial/ ${FORMULA_VERSION} salt"}
+APT_MIRANTIS_SALT_REPO=${APT_MIRANTIS_SALT_REPO:-"http://apt.mirantis.com/xenial/ $FORMULA_VERSION salt"}
 GIT_SALT_FORMULAS_SCRIPTS=${GIT_SALT_FORMULAS_SCRIPTS:-"https://github.com/salt-formulas/salt-formulas-scripts"}
 
 wget -O - ${SALTSTACK_GPG} | sudo apt-key add -