diff --git a/src/plugins/PFC/conversation_loop.py b/src/plugins/PFC/conversation_loop.py
index 38f2e488..1f6fe8c6 100644
--- a/src/plugins/PFC/conversation_loop.py
+++ b/src/plugins/PFC/conversation_loop.py
@@ -180,7 +180,7 @@ async def run_conversation_loop(conversation_instance: "Conversation"):
             if action in ["wait", "listening"] and new_msg_count_action_planning > 0:
                 should_interrupt_action_planning = True
                 interrupt_reason_action_planning = f"规划 {action} 期间收到 {new_msg_count_action_planning} 条新消息"
-            elif other_new_msg_count_action_planning > 2:
+            elif other_new_msg_count_action_planning > global_config.pfc_message_buffer_size:
                 should_interrupt_action_planning = True
                 interrupt_reason_action_planning = (
                     f"规划 {action} 期间收到 {other_new_msg_count_action_planning} 条来自他人的新消息"