diff --git a/tests/acp/test_mcp_e2e.py b/tests/acp/test_mcp_e2e.py
index 88e89acf..45aed78e 100644
--- a/tests/acp/test_mcp_e2e.py
+++ b/tests/acp/test_mcp_e2e.py
@@ -124,7 +124,7 @@ class TestMcpRegistrationE2E:
         mock_conn.request_permission = AsyncMock()
         acp_agent._conn = mock_conn
 
-        def mock_run_conversation(user_message, conversation_history=None, task_id=None):
+        def mock_run_conversation(user_message, conversation_history=None, task_id=None, **kwargs):
             """Simulate an agent turn that calls terminal, gets a result, then responds."""
             agent = state.agent
 
@@ -213,7 +213,7 @@ class TestMcpRegistrationE2E:
         mock_conn.request_permission = AsyncMock()
         acp_agent._conn = mock_conn
 
-        def mock_run(user_message, conversation_history=None, task_id=None):
+        def mock_run(user_message, conversation_history=None, task_id=None, **kwargs):
             agent = state.agent
             # Fire two tool calls
             if agent.tool_progress_callback: