diff --git a/configs/config.py b/configs/config.py
index e7a3e35..73314c3 100644
--- a/configs/config.py
+++ b/configs/config.py
@@ -14,7 +14,7 @@ class AppConfig:
             db=CONFIGS['db']['name'],
             username=CONFIGS['db']['username'],
             password=CONFIGS['db']['password'],
-			authentication_source='admin',
+            authentication_source='admin',
             host="mongodb://{host}:27017/{database}".format(host=CONFIGS['db']['host'], database=CONFIGS['db']['name'])
         )