diff --git a/src/daemon/ticker.py b/src/daemon/ticker.py
index f7289af..65f8a2a 100644
--- a/src/daemon/ticker.py
+++ b/src/daemon/ticker.py
@@ -33,7 +33,7 @@ class BroadcastRound:
     task_id: str
     notified_agents: set = dc_field(default_factory=set)   # 已 spawn 过的 Agent
     responded_agents: set = dc_field(default_factory=set)   # 已返回反馈的 Agent（含 NO_REPLY）
-    round_number: int = 1                                   # 当前第几轮
+    round_number: int = 0                                   # 当前第几轮（0=未开始，1=第1轮）
 
 logger = logging.getLogger("moziplus-v2.ticker")