diff --git a/reminders/models.py b/reminders/models.py
index 53a27ad..14b963d 100644
--- a/reminders/models.py
+++ b/reminders/models.py
@@ -18,6 +18,7 @@ class Appointment(models.Model):
     phone_number = models.CharField(max_length=15)
     time = models.DateTimeField()
     time_zone = TimeZoneField(default='UTC')
+    custom_message = models.TextField()
 
     # Additional fields not visible to users
     task_id = models.CharField(max_length=50, blank=True, editable=False)