diff --git a/tests/options_test.py b/tests/options_test.py
index 670c6251..cbfbade3 100644
--- a/tests/options_test.py
+++ b/tests/options_test.py
@@ -32,6 +32,7 @@ def test_options_change_from_plugin_registering(register_opener):
             save_to_12bit=True,
             decode_threads=3,
             depth_images=False,
+            aux_images=False,
             save_nclx_profile=False,
             preferred_encoder={"HEIF": "id1", "AVIF": "id2"},
             preferred_decoder={"HEIF": "id3", "AVIF": "id4"},
@@ -41,6 +42,7 @@ def test_options_change_from_plugin_registering(register_opener):
         assert options.SAVE_HDR_TO_12_BIT
         assert options.DECODE_THREADS == 3
         assert options.DEPTH_IMAGES is False
+        assert options.AUX_IMAGES is False
         assert options.SAVE_NCLX_PROFILE is False
         assert options.PREFERRED_ENCODER == {"HEIF": "id1", "AVIF": "id2"}
         assert options.PREFERRED_DECODER == {"HEIF": "id3", "AVIF": "id4"}
@@ -50,6 +52,7 @@ def test_options_change_from_plugin_registering(register_opener):
         options.SAVE_HDR_TO_12_BIT = False
         options.DECODE_THREADS = 4
         options.DEPTH_IMAGES = True
+        options.AUX_IMAGES = True
         options.SAVE_NCLX_PROFILE = True
         options.PREFERRED_ENCODER = {"HEIF": "", "AVIF": ""}
         options.PREFERRED_DECODER = {"HEIF": "", "AVIF": ""}