diff --git a/plugins/message_summary/main.py b/plugins/message_summary/main.py
index 171644a..4f87b8e 100644
--- a/plugins/message_summary/main.py
+++ b/plugins/message_summary/main.py
@@ -220,7 +220,7 @@ class MessageSummaryPlugin(MessagePluginInterface):
                 try:
                     # 使用唯一文件名并指定完整路径
                     timestamp = int(time.time())
-                    output_filename = f"summary_{group_id}_{timestamp}.png"
+                    output_filename = f"summary_{timestamp}.png"
                     output_dir = Path(os.path.dirname(os.path.abspath(__file__)), "outputs")
                     
                     # 确保输出目录存在