diff --git a/test/functional/abc-parkedchain.py b/test/functional/abc_feature_parkedchain.py
rename from test/functional/abc-parkedchain.py
rename to test/functional/abc_feature_parkedchain.py
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -814,7 +814,7 @@
 def check_script_prefixes(all_scripts):
     """Check that no more than `EXPECTED_VIOLATION_COUNT` of the
     test scripts don't start with one of the allowed name prefixes."""
-    EXPECTED_VIOLATION_COUNT = 14
+    EXPECTED_VIOLATION_COUNT = 13
 
     # LEEWAY is provided as a transition measure, so that pull-requests
     # that introduce new tests that don't conform with the naming