diff --git a/tests/test_max_pixels.py b/tests/test_max_pixels.py
index 9a37067f..f54a0b95 100644
--- a/tests/test_max_pixels.py
+++ b/tests/test_max_pixels.py
@@ -46,7 +46,7 @@ def test_string_extra_params(self):
             |        | image  | my_image | Image | max-pixels=640 foo=bar |
             """,
             error__contains=[
-                "Accepted parameters are 'max-pixels'. The following are invalid parameter(s): 'foo'."
+                "Accepted parameters are 'app, max-pixels'. The following are invalid parameter(s): 'foo'."
             ],
         )