diff --git a/plugins/postgresql/index.py b/plugins/postgresql/index.py
index 5ac2bab9f..2c5a2a79e 100755
--- a/plugins/postgresql/index.py
+++ b/plugins/postgresql/index.py
@@ -866,7 +866,7 @@ def addDb():
     if listen_ip not in ["127.0.0.1/32", "localhost", "127.0.0.1"]:
         sedConf("listen_addresses", "'*'")
 
-    reg = "^[\w\.-]+$"
+    reg = r"^[\w\.-]+$"
     if not re.match(reg, dbname):
         return mw.returnJson(False, '数据库名称不能带有特殊符号!')