diff --git a/admin/displayappointments.php b/admin/displayappointments.php
index 7d3c127d..3198be18 100644
--- a/admin/displayappointments.php
+++ b/admin/displayappointments.php
@@ -297,7 +297,8 @@ else {
 	MIN(CONCAT('&emsp;<a href=\'\'><i class=\'fa fa-trash-o fa-lg text-danger\' toggle=\'confirmation\' data-title=\'" . TQ_("ARE YOU SURE?") . "\' data-btnOkLabel=\'" . TQ_("Yes") . "\' data-btnCancelLabel=\'" . TQ_("No") . "\' data-placement=\'left\' data-href=\'?case_id=', c.case_id, '&amp;appointment_id=', a.appointment_id, '&amp;delete=delete\'  ></i></a>&emsp;')) as link, 
 	MIN(CONCAT('&emsp;<a href=\'?case_id=', c.case_id, '&amp;appointment_id=', a.appointment_id, '\'><i class=\'fa fa-pencil-square-o fa-lg\' ></i></a>&emsp;')) as edit,MIN(IFNULL(ao.firstName,'" . TQ_("Any operator") . "')) as witho 
 	FROM appointment as a 
-	JOIN (`case` as c, respondent as r, questionnaire as q, operator as oo, call_attempt as cc, operator as co, `sample` as s, sample_import as si) on (c.sample_id = s.sample_id and  a.case_id = c.case_id and a.respondent_id = r.respondent_id and q.questionnaire_id = c.questionnaire_id and a.call_attempt_id = cc.call_attempt_id and cc.operator_id =  oo.operator_id and si.sample_import_id = s.import_id) 
+	JOIN (`case` as c, respondent as r, questionnaire as q,  operator as co, `sample` as s, sample_import as si) on (c.sample_id = s.sample_id and a.case_id = c.case_id and a.respondent_id = r.respondent_id and q.questionnaire_id = c.questionnaire_id and si.sample_import_id = s.import_id) 
+	LEFT JOIN (call_attempt as cc, operator as oo) ON (cc.call_attempt_id = a.call_attempt_id AND oo.operator_id = cc.operator_id)
 	LEFT JOIN (`call` as ca, outcome as ou, operator as ooo) ON (ca.call_id = a.completed_call_id and ou.outcome_id = ca.outcome_id and ca.operator_id = ooo.operator_id) 
 	LEFT JOIN operator AS ao ON ao.operator_id = a.require_operator_id 
 	LEFT JOIN (questionnaire_sample_quota as qsq) on (s.import_id  = qsq.sample_import_id and c.questionnaire_id = qsq.questionnaire_id)