diff --git a/crc/__init__.py b/crc/__init__.py
index 5dc52dc9..f7e825a3 100644
--- a/crc/__init__.py
+++ b/crc/__init__.py
@@ -21,8 +21,10 @@ if "TESTING" in os.environ and os.environ["TESTING"] == "true":
 
 
 db = SQLAlchemy(app)
+""":type: sqlalchemy.orm.SQLAlchemy"""
 
 session = db.session
+""":type: sqlalchemy.orm.Session"""
 
 migrate = Migrate(app, db)
 ma = Marshmallow(app)