diff --git a/cps/db.py b/cps/db.py
index ccf28a7a0..e8a7415d6 100644
--- a/cps/db.py
+++ b/cps/db.py
@@ -416,8 +416,8 @@ class Books(Base):
     path = Column(String, default="", nullable=False)
     has_cover = Column(Integer, default=0)
     uuid = Column(String)
-    isbn = Column(String(collation='NOCASE'), default="")
-    flags = Column(Integer, nullable=False, default=1)
+    # isbn = Column(String(collation='NOCASE'), default="")
+    # flags = Column(Integer, nullable=False, default=1)
 
     authors = relationship(Authors, secondary=books_authors_link, backref='books')
     tags = relationship(Tags, secondary=books_tags_link, backref='books', order_by="Tags.name")