diff --git a/app/models/salon.py b/app/models/salon.py
index 4c2e198..0b4639c 100644
--- a/app/models/salon.py
+++ b/app/models/salon.py
@@ -377,7 +377,9 @@ class Appointment(db.Model):
     cancelled_at = db.Column(db.DateTime, nullable=True)
     rebook_source = db.Column(db.String(20), nullable=True)
     rebooked_from_transaction_id = db.Column(
-        db.Integer, db.ForeignKey("transactions.id"), nullable=True
+        db.Integer,
+        db.ForeignKey("transactions.id", use_alter=True, name="fk_appt_rebooked_transaction"),
+        nullable=True
     )
     created_by = db.Column(db.Integer, db.ForeignKey("users.id"), nullable=True)
     created_at = db.Column(db.DateTime, nullable=False,