diff --git a/tests/puterbot/test_events.py b/tests/puterbot/test_events.py
index ec56d7ea6..9e78e8c99 100644
--- a/tests/puterbot/test_events.py
+++ b/tests/puterbot/test_events.py
@@ -323,6 +323,7 @@ def test_merge_consecutive_mouse_scroll_events():
 
 
 def test_remove_redundant_mouse_move_events():
+    # certain failure modes only appear in longer event chains
     raw_events = list(itertools.chain(*[
         [
             make_move_event(1),
@@ -365,7 +366,6 @@ def test_remove_redundant_mouse_move_events():
         make_click_event(False, 3, get_post_children=lambda: [
             make_move_event(3),
         ]),
-        make_move_event(4),
     ])
     logger.info(f"expected_events=\n{pformat(expected_events)}")
     actual_events = rows2dicts(