diff --git a/django/core/handlers/wsgi.py b/django/core/handlers/wsgi.py
index 1f85511f62..3099cfb64f 100644
--- a/django/core/handlers/wsgi.py
+++ b/django/core/handlers/wsgi.py
@@ -171,7 +171,7 @@ class WSGIHandler(base.BaseHandler):
 
         response._handler_class = self.__class__
 
-        status = '%s %s' % (response.status_code, response.reason_phrase)
+        status = '%d %s' % (response.status_code, response.reason_phrase)
         response_headers = [(str(k), str(v)) for k, v in response.items()]
         for c in response.cookies.values():
             response_headers.append((str('Set-Cookie'), str(c.output(header=''))))
diff --git a/tests/handlers/tests.py b/tests/handlers/tests.py
index a3f3ec7f70..d0b161cf44 100644
--- a/tests/handlers/tests.py
+++ b/tests/handlers/tests.py
@@ -2,6 +2,8 @@
 
 from __future__ import unicode_literals
 
+import unittest
+
 from django.core.handlers.wsgi import WSGIHandler, WSGIRequest, get_script_name
 from django.core.signals import request_finished, request_started
 from django.db import close_old_connections, connection
@@ -11,6 +13,11 @@ from django.test import (
 from django.utils import six
 from django.utils.encoding import force_str
 
+try:
+    from http import HTTPStatus
+except ImportError:  # Python < 3.5
+    HTTPStatus = None
+
 
 class HandlerTests(SimpleTestCase):
 
@@ -160,16 +167,12 @@ class SignalsTests(SimpleTestCase):
 
 
 @override_settings(ROOT_URLCONF='handlers.urls')
-class HandlerSuspiciousOpsTest(SimpleTestCase):
+class HandlerRequestTests(SimpleTestCase):
 
     def test_suspiciousop_in_view_returns_400(self):
         response = self.client.get('/suspicious/')
         self.assertEqual(response.status_code, 400)
 
-
-@override_settings(ROOT_URLCONF='handlers.urls')
-class HandlerNotFoundTest(SimpleTestCase):
-
     def test_invalid_urls(self):
         response = self.client.get('~%A9helloworld')
         self.assertContains(response, '~%A9helloworld', status_code=404)
@@ -187,6 +190,15 @@ class HandlerNotFoundTest(SimpleTestCase):
         environ = RequestFactory().get('/%E2%A8%87%87%A5%E2%A8%A0').environ
         self.assertIsInstance(environ['PATH_INFO'], six.text_type)
 
+    @unittest.skipIf(HTTPStatus is None, 'HTTPStatus only exists on Python 3.5+')
+    def test_handle_accepts_httpstatus_enum_value(self):
+        def start_response(status, headers):
+            start_response.status = status
+
+        environ = RequestFactory().get('/httpstatus_enum/').environ
+        WSGIHandler()(environ, start_response)
+        self.assertEqual(start_response.status, '200 OK')
+
 
 class ScriptNameTests(SimpleTestCase):
     def test_get_script_name(self):
diff --git a/tests/handlers/urls.py b/tests/handlers/urls.py
index ad46ef6f03..9d23fd3fa7 100644
--- a/tests/handlers/urls.py
+++ b/tests/handlers/urls.py
@@ -11,4 +11,5 @@ urlpatterns = [
     url(r'^not_in_transaction/$', views.not_in_transaction),
     url(r'^suspicious/$', views.suspicious),
     url(r'^malformed_post/$', views.malformed_post),
+    url(r'^httpstatus_enum/$', views.httpstatus_enum),
 ]
diff --git a/tests/handlers/views.py b/tests/handlers/views.py
index 4004dfe033..21c1387f08 100644
--- a/tests/handlers/views.py
+++ b/tests/handlers/views.py
@@ -5,6 +5,11 @@ from django.db import connection, transaction
 from django.http import HttpResponse, StreamingHttpResponse
 from django.views.decorators.csrf import csrf_exempt
 
+try:
+    from http import HTTPStatus
+except ImportError:  # Python < 3.5
+    pass
+
 
 def regular(request):
     return HttpResponse(b"regular content")
@@ -31,3 +36,7 @@ def suspicious(request):
 def malformed_post(request):
     request.POST
     return HttpResponse()
+
+
+def httpstatus_enum(request):
+    return HttpResponse(status=HTTPStatus.OK)