diff --git a/src/covid19/blueprints/common/common_model.py b/src/covid19/blueprints/common/common_model.py
index 7420fa7fea56e3e165482b187f4d6d40f5de04ec..3c22f9fff2ef9add98a514dede9a79a8e9ad54ff 100644
--- a/src/covid19/blueprints/common/common_model.py
+++ b/src/covid19/blueprints/common/common_model.py
@@ -113,11 +113,15 @@ class CommonDateReported(db.Model):
 
     @classmethod
     def find_by_year_week(cls, year_week):
-        return db.session.query(cls).filter(cls.year_week == year_week).one_or_none()
+        return db.session.query(cls)\
+            .filter(cls.year_week == year_week)\
+            .one_or_none()
 
     @classmethod
     def get_by_year_week(cls, year_week):
-        return db.session.query(cls).filter(cls.year_week == year_week).one()
+        return db.session.query(cls)\
+            .filter(cls.year_week == year_week)\
+            .one()
 
 
 class CommonRegion(db.Model):