diff --git a/accountant/api/models/operations.py b/accountant/api/models/operations.py
index 718099d..b26eaee 100644
--- a/accountant/api/models/operations.py
+++ b/accountant/api/models/operations.py
@@ -42,13 +42,13 @@ class Operation(db.Model):
     )
 
     scheduled_operation = db.relationship(
-        "ScheduledOperation", backref=db.backref('entry', lazy="dynamic")
+        "ScheduledOperation", backref=db.backref('operations', lazy="dynamic")
     )
 
     account_id = db.Column(db.Integer, db.ForeignKey('account.id'), index=True)
 
     account = db.relationship(
-        'Account', backref=db.backref('operation', lazy="dynamic")
+        'Account', backref=db.backref('operations', lazy="dynamic")
     )
 
     category = db.Column(db.String(100), nullable=True, index=True)