diff --git a/src/agents/subagent-announce.format.e2e.test.ts b/src/agents/subagent-announce.format.e2e.test.ts
index 33bd99157c4..d76e3b2a198 100644
--- a/src/agents/subagent-announce.format.e2e.test.ts
+++ b/src/agents/subagent-announce.format.e2e.test.ts
@@ -148,7 +148,7 @@ describe("subagent announce formatting", () => {
     sendSpy
       .mockReset()
       .mockImplementation(async (_req: AgentCallRequest) => ({ runId: "send-main", status: "ok" }));
-    sessionsDeleteSpy.mockReset().mockImplementation((_req: AgentCallRequest) => undefined);
+    sessionsDeleteSpy.mockClear().mockImplementation((_req: AgentCallRequest) => undefined);
     embeddedRunMock.isEmbeddedPiRunActive.mockReset().mockReturnValue(false);
     embeddedRunMock.isEmbeddedPiRunStreaming.mockClear().mockReturnValue(false);
     embeddedRunMock.queueEmbeddedPiMessage.mockClear().mockReturnValue(false);