diff --git a/tests/admin_docs/test_views.py b/tests/admin_docs/test_views.py
index b9955717f4..a64da843ed 100644
--- a/tests/admin_docs/test_views.py
+++ b/tests/admin_docs/test_views.py
@@ -293,6 +293,16 @@ class TestModelDetailView(TestDataMixin, AdminDocsTestCase):
     def test_model_detail_title(self):
         self.assertContains(self.response, '<h1>admin_docs.Person</h1>', html=True)
 
+    def test_app_not_found(self):
+        response = self.client.get(reverse('django-admindocs-models-detail', args=['doesnotexist', 'Person']))
+        self.assertEqual(response.context['exception'], "App 'doesnotexist' not found")
+        self.assertEqual(response.status_code, 404)
+
+    def test_model_not_found(self):
+        response = self.client.get(reverse('django-admindocs-models-detail', args=['admin_docs', 'doesnotexist']))
+        self.assertEqual(response.context['exception'], "Model 'doesnotexist' not found in app 'admin_docs'")
+        self.assertEqual(response.status_code, 404)
+
 
 class CustomField(models.Field):
     description = "A custom field type"