diff --git a/CRM/ConstituentsOnly/BAO/Query.php b/CRM/ConstituentsOnly/BAO/Query.php
index f3013d3..d068f6f 100644
--- a/CRM/ConstituentsOnly/BAO/Query.php
+++ b/CRM/ConstituentsOnly/BAO/Query.php
@@ -65,6 +65,7 @@ class CRM_ConstituentsOnly_BAO_Query extends CRM_Contact_BAO_Query_Interface {
               LEFT JOIN civicrm_contact cc1
                 ON (cr.contact_id_a = cc1.id)
             WHERE contact_a.do_not_trade = 1 AND (cr.id IS NULL OR cc1.is_deleted = 1 OR cc1.do_not_trade = 1)
+            AND contact_a.id <> cc1.id
           UNION
           SELECT contact_a.id
             FROM civicrm_contact contact_a
@@ -74,6 +75,7 @@ class CRM_ConstituentsOnly_BAO_Query extends CRM_Contact_BAO_Query_Interface {
               LEFT JOIN civicrm_contact cc1
                 ON (cr.contact_id_b = cc1.id)
             WHERE contact_a.do_not_trade = 1 AND (cr.id IS NULL OR cc1.is_deleted = 1 OR cc1.do_not_trade = 1)
+            AND contact_a.id <> cc1.id
           ) AS temp GROUP BY id
         )
       ";