diff --git a/isso/db/__init__.py b/isso/db.py
similarity index 99%
rename from isso/db/__init__.py
rename to isso/db.py
index c121140..ebaf3d8 100644
--- a/isso/db/__init__.py
+++ b/isso/db.py
@@ -21,6 +21,8 @@ logger = logging.getLogger("isso")
 
 class Adapter(object):
 
+    MAX_VERSION = 3
+
     def __init__(self, db):
         self.engine = create_engine(db, echo=False)
         self.metadata = MetaData()
diff --git a/isso/models/__init__.py b/isso/models.py
similarity index 100%
rename from isso/models/__init__.py
rename to isso/models.py
diff --git a/isso/spam/__init__.py b/isso/spam.py
similarity index 100%
rename from isso/spam/__init__.py
rename to isso/spam.py