diff --git a/src/main/java/seedu/address/model/AppointmentBook.java b/src/main/java/seedu/address/model/AppointmentBook.java
index e12151a4482..2df21aa14b0 100644
--- a/src/main/java/seedu/address/model/AppointmentBook.java
+++ b/src/main/java/seedu/address/model/AppointmentBook.java
@@ -129,7 +129,6 @@ public Appointment addAppointment(Person person, AppointmentDescriptor appointme
      */
     public void setAppointment(Appointment target, Appointment editedAppointment) {
         requireNonNull(editedAppointment);
-
         appointments.setAppointment(target, editedAppointment);
     }
 
diff --git a/src/main/java/seedu/address/model/appointment/UniqueAppointmentList.java b/src/main/java/seedu/address/model/appointment/UniqueAppointmentList.java
index 5ef02a397a3..256b5652e5b 100644
--- a/src/main/java/seedu/address/model/appointment/UniqueAppointmentList.java
+++ b/src/main/java/seedu/address/model/appointment/UniqueAppointmentList.java
@@ -125,7 +125,7 @@ public void setAppointments(List<Appointment> appointments) {
      */
     public void removeAppointmentsForPerson(Person toRemove) {
         requireNonNull(toRemove);
-        internalList.removeIf(appointment -> appointment.getPerson().equals(toRemove));
+        internalList.removeIf(appointment -> appointment.getPersonId() == toRemove.getPersonId());
     }
 
     /**