diff --git a/tests/tests_rest_assets.py b/tests/tests_rest_assets.py
index 4c94ad072..feb8b4ea7 100644
--- a/tests/tests_rest_assets.py
+++ b/tests/tests_rest_assets.py
@@ -96,6 +96,12 @@ def test_update_asset_should_return_correct_asset_uuid(self):
                                         {'asset_type_id': 1, 'asset_name': 'new_asset_name'}).json()
         self.assertEqual(asset_uuid, response['asset_uuid'])
 
+    def test_update_asset_should_return_404_when_asset_not_found(self):
+        case_identifier = self._subject.create_dummy_case()
+        response = self._subject.update(f'/api/v2/cases/{case_identifier}/assets/{_IDENTIFIER_FOR_NONEXISTENT_OBJECT}',
+                                        {'asset_type_id': 1, 'asset_name': 'new_asset_name'})
+        self.assertEqual(404, response.status_code)
+
     def test_delete_asset_should_return_204(self):
         case_identifier = self._subject.create_dummy_case()
         body = {'asset_type_id': 1, 'asset_name': 'admin_laptop_test'}