diff --git a/deploy/vagrant/scripts/tinkerbell.sh b/deploy/vagrant/scripts/tinkerbell.sh
index 290fcfb..d2d7a6d 100644
--- a/deploy/vagrant/scripts/tinkerbell.sh
+++ b/deploy/vagrant/scripts/tinkerbell.sh
@@ -39,7 +39,7 @@ main() (
 	fi
 
 	# shellcheck disable=SC1091
-	. ./.env
+	source ./.env
 
 	make_certs_writable