diff --git a/jupyter_fsspec/tests/unit/test_filesystem_manager.py b/jupyter_fsspec/tests/unit/test_filesystem_manager.py
index 941765a..dc1f132 100644
--- a/jupyter_fsspec/tests/unit/test_filesystem_manager.py
+++ b/jupyter_fsspec/tests/unit/test_filesystem_manager.py
@@ -172,7 +172,8 @@ def test_check_reload_config(setup_config_dir, config_file):
 
         mem_fs_instance = mem_instance_info["instance"]
         assert mem_fs_instance.ls("/") == [
-            {"name": "/my_mem_dir", "size": 0, "type": "directory"}
+            {"name": "/my_mem_dir", "size": 0, "type": "directory"},
+            {"name": "/mem_dir", "size": 0, "type": "directory"},
         ]