diff --git a/letta/groups/sleeptime_multi_agent_v2.py b/letta/groups/sleeptime_multi_agent_v2.py
index bbcd5b4b..7d46ae43 100644
--- a/letta/groups/sleeptime_multi_agent_v2.py
+++ b/letta/groups/sleeptime_multi_agent_v2.py
@@ -62,6 +62,7 @@ class SleeptimeMultiAgentV2(BaseAgent):
         input_messages: List[MessageCreate],
         max_steps: int = 10,
         use_assistant_message: bool = True,
+        request_start_timestamp_ns: Optional[int] = None,
     ) -> LettaResponse:
         run_ids = []