diff --git a/test/known_issues/test-inspector-cluster-port-clash.js b/test/known_issues/test-inspector-cluster-port-clash.js
index 9fa2b483568c93..381446147c3175 100644
--- a/test/known_issues/test-inspector-cluster-port-clash.js
+++ b/test/known_issues/test-inspector-cluster-port-clash.js
@@ -23,6 +23,8 @@ if (process.config.variables.v8_enable_inspector === 0) {
 const cluster = require('cluster');
 const net = require('net');
 
+common.crashOnUnhandleRejection();
+
 const ports = [process.debugPort];
 const clashPort = process.debugPort + 2;
 function serialFork() {