diff --git a/tests/test_filters.py b/tests/test_filters.py
index 9719e11..15ead84 100644
--- a/tests/test_filters.py
+++ b/tests/test_filters.py
@@ -323,14 +323,16 @@ def test_regression_github_issue_321(rule_collection, test_backend, sigma_filter
         "not (((filter)))",
     ],
 )
-def test_regression_github_issue_321_brackets(rule_collection, test_backend, sigma_filter, filter_condition):
+def test_regression_github_issue_321_brackets(
+    rule_collection, test_backend, sigma_filter, filter_condition
+):
     sigma_filter.filter = SigmaGlobalFilter.from_dict(
         {
             "rules": [
                 "6f3e2987-db24-4c78-a860-b4f4095a7095",
             ],
             "filter": {"User|startswith": "adm_"},
-            "condition": filter_condition
+            "condition": filter_condition,
         }
     )
 
@@ -338,4 +340,4 @@ def test_regression_github_issue_321_brackets(rule_collection, test_backend, sig
 
     assert test_backend.convert(rule_collection) == [
         '(EventID=4625 or EventID2=4624) and not User startswith "adm_"'
-    ]
\ No newline at end of file
+    ]