diff --git a/lib/db.py b/lib/db.py
index fb3d380..e983be8 100644
--- a/lib/db.py
+++ b/lib/db.py
@@ -4,7 +4,7 @@ from pymongo import MongoClient
 def col():
     # 链接数据库
     conn = MongoClient('mongodb://surl:K5r7LGrQmAU55W@10.99.0.4:27001/shortUrl')
-    return conn.surl['surl']
+    return conn.shortUrl['surl']
 
 # 通过尾缀获取源地址
 def getUrlByTail(tail):