diff --git a/test/config/server.js b/test/config/server.js
index de6d5b77..d027cdb0 100644
--- a/test/config/server.js
+++ b/test/config/server.js
@@ -97,7 +97,9 @@ if (hasStartArg) {
     port: serverConfig.port + 1,
     directory: true,
   });
-} else if (!process.env.NODE_ENV) {
+}
+// Display friendly message about manually starting a server instance
+else if (require.main === module) {
   console.info('Use --start argument to manually start server instance');
 }