diff --git a/lib/utils/setupExitSignals.js b/lib/utils/setupExitSignals.js
index 105b2b4273..03bb9bdd3c 100644
--- a/lib/utils/setupExitSignals.js
+++ b/lib/utils/setupExitSignals.js
@@ -5,7 +5,7 @@ const signals = ['SIGINT', 'SIGTERM'];
 function setupExitSignals(serverData) {
   signals.forEach((signal) => {
     process.on(signal, () => {
-      if (serverData.server) {
+      if (serverData && serverData.server) {
         serverData.server.close(() => {
           // eslint-disable-next-line no-process-exit
           process.exit();