diff --git a/tests/test_issues_server.py b/tests/test_issues_server.py
index e0a86b9cea507679aa8fc0bd2a1071d87d7f7ee7..70a340f3653b734fa32312b268f3715c17cacbd6 100644
--- a/tests/test_issues_server.py
+++ b/tests/test_issues_server.py
@@ -377,7 +377,10 @@ def test_issue_154_with_versioning():
 
 def test_issue_127():
     """https://gitlab.com/caosdb/caosdb-server/-/issues/127"""
-    p = db.Property(name="TestDoubleProperty", datatype=db.LIST(db.DOUBLE)).insert()
+    p = db.Property(
+        name="TestDoubleProperty",
+        datatype=db.LIST(
+            db.DOUBLE)).insert()
     rt = db.RecordType(name="TestRecordType").add_property(name="TestDoubleProperty",
                                                            value=["nan"]).insert()