JPQL/HQL ERROR: syntax error at end of input with LEFT JOIN

I'm getting ERROR: syntax error at end of input while trying to execute the query below:

SELECT appointment FROM Appointment appointment LEFT JOIN DoctorFacilityAppointment dfa

Can someone tell me why I'm getting this error?

Appointment class

public class Appointment implements Serializable {
        
   private static final long serialVersionUID = 1L;
        
   @Id
   @GeneratedValue(strategy = GenerationType.IDENTITY)
   private int id;
        
   @Column(name="start_time")
   private LocalDateTime startTime;
        
   @Column(name="is_valide")
   private boolean isValid;
        
   @ManyToOne
   @JoinColumn(name = "patient_id", referencedColumnName = "id")
   private Patient patient;
    
}

DoctorFacilityAppointment

public class DoctorFacilityAppointment implements Serializable {
        
   private static final long serialVersionUID = 1L;
        
   @Id
   @GeneratedValue(strategy = GenerationType.IDENTITY)
   private int id;
        
   @ManyToOne
   @JoinColumn(name = "appointment_id", referencedColumnName = "id")
   private Appointment appointment;
        
   @ManyToOne
   @JoinColumn(name = "doctor_service_id", referencedColumnName = "id")
   private DoctorFacility doctorFacility;
}