diff --git a/src/roiextractors/testing.py b/src/roiextractors/testing.py
index 816c3165..590613ec 100644
--- a/src/roiextractors/testing.py
+++ b/src/roiextractors/testing.py
@@ -181,7 +181,7 @@ def generate_dummy_segmentation_extractor(
         correlation_image=correlation_image,
         roi_ids=roi_ids,
         roi_locations=roi_locations,
-        accepted_lst=accepeted_list,
+        accepted_list=accepeted_list,
         rejected_list=rejected_list,
         movie_dims=movie_dims,
         channel_names=["channel_num_0"],