diff --git a/beat/backend/python/database.py b/beat/backend/python/database.py
index 2a552b3a4f33443dc43c99d003817befce433771..20853102fbedb64a8cf27f4359ddd09674f50f9c 100644
--- a/beat/backend/python/database.py
+++ b/beat/backend/python/database.py
@@ -88,8 +88,7 @@ class Runner(object):
 
       prefix (str): Establishes the prefix of your installation.
 
-      root_folder (str, path): The path pointing to the root folder of this
-        database
+      root_folder (str): The path pointing to the root folder of this database
 
       exc (:std:term:`class`): The class to use as base exception when
         translating the exception from the user code. Read the documention of