diff --git a/planetmint/backend/localmongodb/query.py b/planetmint/backend/localmongodb/query.py
index 1d51cb1..4564c7f 100644
--- a/planetmint/backend/localmongodb/query.py
+++ b/planetmint/backend/localmongodb/query.py
@@ -1,3 +1,4 @@
+from functools import singledispatch
 # Copyright © 2020 Interplanetary Database Association e.V.,
 # BigchainDB and IPDB software contributors.
 # SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
diff --git a/planetmint/config.py b/planetmint/config.py
index 76baaac..515deac 100644
--- a/planetmint/config.py
+++ b/planetmint/config.py
@@ -68,11 +68,6 @@ class Config(metaclass=Singleton):
             "service": "tarantoolctl connect",
             "init_config": self.__private_init_config,
             "drop_config": self.__private_drop_config,
-            'host': 'localhost',
-            'port': 3301,
-            "connect_now": True,
-            "encoding": "utf-8"
-
         }
 
         self.__private_database_map = {