diff --git a/services/biz_service.py b/services/biz_service.py
index 62ab11d..b89a74a 100644
--- a/services/biz_service.py
+++ b/services/biz_service.py
@@ -244,7 +244,7 @@ class BizService():
                     self.wxchat.forward_video_aeskey = res["aesKey"]
                     self.wxchat.forward_video_cdnvideourl = res["cdnThumbUrl"]
                     self.wxchat.forward_video_length = res["length"]
-                    self.wxchat.video_duration=video_duration
+                    self.wxchat.video_duration=int(video_duration)
             else:
                 ret,ret_msg,res = await self.wxchat.forward_video_async(token_id, app_id, t, self.wxchat.forward_video_aeskey, self.wxchat.forward_video_cdnvideourl, self.wxchat.forward_video_length,self.wxchat.video_duration)
                 print('转发视频')