diff --git a/taptap/collect_mongodb.py b/taptap/collect_mongodb.py
index 5ed050b..38f9f1a 100644
--- a/taptap/collect_mongodb.py
+++ b/taptap/collect_mongodb.py
@@ -86,7 +86,7 @@ define_logger("/data/logs/ops/reptile2ss.log")
 log = logging.getLogger(__name__)
 MONGOINFO = {'host': '10.10.5.6', 'port': 27017}
 
-conver_float = ('score')
+conver_float = ('score',)
 conver_int = ('order', 'gameid', 'watch', 'reserve', 'sell', 'download', 'review', 'topic')