diff --git a/app/models/observer/ticket/notification/background_job.rb b/app/models/observer/ticket/notification/background_job.rb
index ba095b58e..289af9656 100644
--- a/app/models/observer/ticket/notification/background_job.rb
+++ b/app/models/observer/ticket/notification/background_job.rb
@@ -145,6 +145,7 @@ class Observer::Ticket::Notification::BackgroundJob
 
         # delete old notifications
         if @p[:type] == 'reminder_reached' || @p[:type] == 'escalation'
+          seen = false
           OnlineNotification.remove_by_type('Ticket', ticket.id, @p[:type])
         end
         OnlineNotification.add(
diff --git a/app/models/ticket.rb b/app/models/ticket.rb
index fa01119f3..3bae8b73d 100644
--- a/app/models/ticket.rb
+++ b/app/models/ticket.rb
@@ -278,13 +278,16 @@ returns
 =end
 
   def online_notification_seen_state(user_id_check = nil)
-
-    # always to set unseen for ticket owner
-    return false if user_id_check && user_id_check == owner_id && user_id_check != updated_by_id
-
     state      = Ticket::State.lookup(id: state_id)
     state_type = Ticket::StateType.lookup(id: state.state_type_id)
 
+    # always to set unseen for ticket owner
+    if state_type.name != 'merged'
+      if user_id_check
+        return false if user_id_check == owner_id && user_id_check != updated_by_id
+      end
+    end
+
     # set all to seen if pending action state is a closed or merged state
     if state_type.name == 'pending action' && state.next_state_id
       state      = Ticket::State.lookup(id: state.next_state_id)
diff --git a/test/unit/online_notifiaction_test.rb b/test/unit/online_notifiaction_test.rb
index 11d4fd439..4abaed355 100644
--- a/test/unit/online_notifiaction_test.rb
+++ b/test/unit/online_notifiaction_test.rb
@@ -427,6 +427,17 @@ class OnlineNotificationTest < ActiveSupport::TestCase
     assert_equal(ticket1.online_notification_seen_state(agent_user1.id), true)
     assert_equal(ticket1.online_notification_seen_state(agent_user2.id), true)
 
+    # to closed by owner self, all to seen
+    ticket1.update_attributes(
+      owner_id: agent_user1.id,
+      state: Ticket::State.lookup(name: 'merged'),
+      updated_by_id: agent_user2.id,
+    )
+
+    assert_equal(ticket1.online_notification_seen_state, true)
+    assert_equal(ticket1.online_notification_seen_state(agent_user1.id), true)
+    assert_equal(ticket1.online_notification_seen_state(agent_user2.id), true)
+
   end
 
   def notification_check(online_notifications, checks)