diff --git a/src/agents/openai-transport-stream.test.ts b/src/agents/openai-transport-stream.test.ts
index 3aca458c73a..1a6790254ea 100644
--- a/src/agents/openai-transport-stream.test.ts
+++ b/src/agents/openai-transport-stream.test.ts
@@ -1272,11 +1272,9 @@ describe("openai transport stream", () => {
       } as never,
       undefined,
     ) as {
-      stream?: boolean;
       stream_options?: { include_usage?: boolean };
     };
 
-    expect(params.stream).toBe(true);
     expect(params.stream_options).toEqual({ include_usage: true });
   });