diff --git a/tests/basic_store.py b/tests/basic_store.py
index 0bb3545..93fc6c5 100644
--- a/tests/basic_store.py
+++ b/tests/basic_store.py
@@ -98,7 +98,7 @@ def test_key_error_on_nonexistant_get_file(self, store, key):
         with pytest.raises(KeyError):
             store.get_file(key, BytesIO())
 
-    def test_key_error_on_nonexistant_get_filename(self, store, key):
+    def test_key_error_on_nonexistant_get_filename(self, store, key, tmp_path):
         with pytest.raises(KeyError):
             store.get_file(key, "/dev/null")