diff --git a/install.sh b/install.sh
index 78ac636..3f96c4f 100755
--- a/install.sh
+++ b/install.sh
@@ -59,5 +59,9 @@ set -Eeuo pipefail
 assert_supported_distro
 sudo_root
 deployment_type_adjective="${1:-installed}"
+
 if once_installed; then upgrade; else install; fi
-[[ $deployment_type_adjective == 'installed' ]] && exec bash -l
+
+if [[ $deployment_type_adjective == 'installed' ]]; then
+  exec bash -l
+fi