diff --git a/test/conformance/start.sh b/test/conformance/start.sh
index 890b1108684..6262d7855bc 100755
--- a/test/conformance/start.sh
+++ b/test/conformance/start.sh
@@ -3,4 +3,5 @@
 set -euxo pipefail
 cd "$( dirname "${BASH_SOURCE[0]}" )/../.."
 
-docker-compose -f quickstart.yml -f quickstart-postgres.yml -f test/conformance/docker-compose.yml up "${1:-}" -d
+# shellcheck disable=SC2086
+docker-compose -f quickstart.yml -f quickstart-postgres.yml -f test/conformance/docker-compose.yml up ${1:-} -d