diff --git a/events/unhandledRejection.js b/events/unhandledRejection.js
new file mode 100644
index 0000000..8bd7b4b
--- /dev/null
+++ b/events/unhandledRejection.js
@@ -0,0 +1,10 @@
+process.on('unhandledRejection', error => {
+  // Will print "unhandledRejection err is not defined"
+  console.log('unhandledRejection', error.message);
+});
+
+new Promise((_, reject) => reject(new Error('woops'))).
+  catch(error => {
+    // Will not execute
+    console.log('caught', err.message);
+  });