diff --git a/test/parallel/test-http2-window-size.js b/test/parallel/test-http2-window-size.js
index d6c6bf3fed2af2..381416c0d23cc6 100644
--- a/test/parallel/test-http2-window-size.js
+++ b/test/parallel/test-http2-window-size.js
@@ -10,6 +10,7 @@ if (!common.hasCrypto)
   common.skip('missing crypto');
 const assert = require('assert');
 const h2 = require('http2');
+common.crashOnUnhandledRejection();
 
 // Given a list of buffers and an initial window size, have a server write
 // each buffer to the HTTP2 Writable stream, and let the client verify that