diff --git a/test/localserver.js b/test/localserver.js
index 4afda6b..1e3cf92 100644
--- a/test/localserver.js
+++ b/test/localserver.js
@@ -70,7 +70,7 @@ app.get('/:filename', (req, res) => {
` +
diff --git a/test/unidirectional-streams.spec.js b/test/unidirectional-streams.spec.js
index 6bc0bb7..f2eee45 100644
--- a/test/unidirectional-streams.spec.js
+++ b/test/unidirectional-streams.spec.js
@@ -98,7 +98,7 @@ describe('unidirectional streams', function () {
process.env.USE_PONYFILL === 'true'
)
addpolyfill = 4000
- this.timeout(6000 + addpolyfill)
+ this.timeout(this.timeout() + 4000 + addpolyfill)
client = new WebTransport(
`${process.env.SERVER_URL}/unidirectional_server_delay_before_read`,
wtOptions