diff --git a/packages/client/connection/tests/client-apply.spec.ts b/packages/client/connection/tests/client-apply.spec.ts
index 9bc645c847..524983fb4f 100644
--- a/packages/client/connection/tests/client-apply.spec.ts
+++ b/packages/client/connection/tests/client-apply.spec.ts
@@ -125,7 +125,7 @@ describe('connection client apply', () => {
     const fetch = vi.spyOn(globalThis, 'fetch')
     const client = (await mount()).api as WebApiClient
     const envelopes: RpcMessage[][] = []
-    client.subscribeEnvelopes(batch => { envelopes.push([...batch]) })
+    client.subscribeEnvelopes((batch) => { envelopes.push([...batch]) })
     const opened: string[] = []
     const muxAbort = new AbortController()
     const hostAbort = new AbortController()