diff --git a/scripts/vagrant/create_vhost_vm.sh b/scripts/vagrant/create_vhost_vm.sh
index 35222c901..affc0fa3e 100755
--- a/scripts/vagrant/create_vhost_vm.sh
+++ b/scripts/vagrant/create_vhost_vm.sh
@@ -71,9 +71,9 @@ export INSTALL_DEPS
 
 shift "$((OPTIND-1))"   # Discard the options and sentinel --
 
-SPDK_VAGRANT_DISTRO=( "$@" )
+SPDK_VAGRANT_DISTRO="$*"
 
-case "${SPDK_VAGRANT_DISTRO[0]}" in
+case "${SPDK_VAGRANT_DISTRO}" in
 	ubuntu16)
 		export SPDK_VAGRANT_DISTRO
 	;;