diff --git a/awx/main/tasks.py b/awx/main/tasks.py
index d60d936531..759c0f8a9d 100644
--- a/awx/main/tasks.py
+++ b/awx/main/tasks.py
@@ -43,6 +43,7 @@ from django.core.mail import send_mail
 from django.contrib.auth.models import User
 from django.utils.translation import ugettext_lazy as _
 from django.core.cache import cache
+from django.core.exceptions import ObjectDoesNotExist
 
 # AWX
 from awx.main.constants import CLOUD_PROVIDERS
@@ -235,7 +236,11 @@ def _send_notification_templates(instance, status_str):
 
 @task(bind=True, queue='default')
 def handle_work_success(self, result, task_actual):
-    instance = UnifiedJob.get_instance_by_type(task_actual['type'], task_actual['id'])
+    try:
+        instance = UnifiedJob.get_instance_by_type(task_actual['type'], task_actual['id'])
+    except ObjectDoesNotExist:
+        logger.warning('Missing job `{}` in success callback.'.format(task_actual['id']))
+        return
     if not instance:
         return
 
diff --git a/awx/main/tests/unit/test_tasks.py b/awx/main/tests/unit/test_tasks.py
index 16b9bc6b14..204ef80352 100644
--- a/awx/main/tests/unit/test_tasks.py
+++ b/awx/main/tests/unit/test_tasks.py
@@ -2,10 +2,12 @@ from contextlib import contextmanager
 
 import pytest
 import yaml
+import mock
 
 from awx.main.models import (
     UnifiedJob,
     Notification,
+    ProjectUpdate
 )
 
 from awx.main import tasks
@@ -31,6 +33,13 @@ def test_send_notifications_job_id(mocker):
         assert UnifiedJob.objects.get.called_with(id=1)
 
 
+def test_work_success_callback_missing_job():
+    task_data = {'type': 'project_update', 'id': 9999}
+    with mock.patch('django.db.models.query.QuerySet.get') as get_mock:
+        get_mock.side_effect = ProjectUpdate.DoesNotExist()
+        assert tasks.handle_work_success(None, task_data) is None
+
+
 def test_send_notifications_list(mocker):
     patches = list()