diff --git a/lib/tests.sh b/lib/tests.sh
index d624151..ddc0f8b 100644
--- a/lib/tests.sh
+++ b/lib/tests.sh
@@ -439,7 +439,7 @@ TEST_PORT_ALREADY_USED () {
     lxc file push $TEST_CONTEXT/netcat.service $LXC_NAME/etc/systemd/system/netcat.service
 
     # Then start this service to block this port.
-    LXC_EXEC "systemctl enable netcat & systemctl start netcat"
+    LXC_EXEC "systemctl enable --now netcat"
 
     _PREINSTALL