diff --git a/wagtail/wagtailadmin/tests/tests.py b/wagtail/wagtailadmin/tests/tests.py
index 07fea53e7..834c20de5 100644
--- a/wagtail/wagtailadmin/tests/tests.py
+++ b/wagtail/wagtailadmin/tests/tests.py
@@ -35,6 +35,7 @@ class TestHome(TestCase, WagtailTestUtils):
         self.assertIn('private', response['Cache-Control'])
         self.assertIn('no-cache', response['Cache-Control'])
         self.assertIn('no-store', response['Cache-Control'])
+        self.assertIn('max-age=0', response['Cache-Control'])
 
 
 class TestEditorHooks(TestCase, WagtailTestUtils):
diff --git a/wagtail/wagtailadmin/urls.py b/wagtail/wagtailadmin/urls.py
index efcf1bc70..3a1c577e8 100644
--- a/wagtail/wagtailadmin/urls.py
+++ b/wagtail/wagtailadmin/urls.py
@@ -121,5 +121,5 @@ urlpatterns += [
 
 # Decorate all views with cache settings to prevent caching
 urlpatterns = decorate_urlpatterns(urlpatterns,
-    cache_control(private=True, no_cache=True, no_store=True)
+    cache_control(private=True, no_cache=True, no_store=True, max_age=0)
 )