diff --git a/apps/third/dahua.py b/apps/third/dahua.py
index 277b8e86..f8754b25 100644
--- a/apps/third/dahua.py
+++ b/apps/third/dahua.py
@@ -149,7 +149,7 @@ class DhClient:
         if '$' in code:
             d_code = code.split('$')[0]
             json_data['deviceCode'] = d_code
-            json_data['params'] = '{\"method\":\"dev.snap\",\"id\":'+int(idWorker.get_id())+',\"params\":{\"DevID\":\"' + \
+            json_data['params'] = '{\"method\":\"dev.snap\",\"id\":'+str(idWorker.get_id())+',\"params\":{\"DevID\":\"' + \
                 str(d_code) + '\",\"DevChannel\":\"' + code + '\",\"PicNum\":1,\"SnapType\":1,\"CmdSrc\":0}}'
         _, res = self.request(**dhapis['dev_snap'], json=json_data)
         res = json.loads(res)