diff --git a/create_db.py b/create_db.py
index c538936..bd38a74 100644
--- a/create_db.py
+++ b/create_db.py
@@ -41,6 +41,7 @@ class Card(Base):
 class Deck(Base):
     __tablename__   = 'deck'
     id = Column(Integer, primary_key=True, autoincrement=True)
+    owner_id = Column(Integer, ForeignKey("user.id"), nullable=False)
     cards_by_id = Column(Text)
     number_of_cards = Column(Integer) 
     current_card = Column(Integer)