diff --git a/tests/pydnstest/scenario.py b/tests/pydnstest/scenario.py
index b3b71e68603213be64d651e9125ba2df2ededb06..5d1d89f95ce0d42f739e8d01367a4c7221515e54 100644
--- a/tests/pydnstest/scenario.py
+++ b/tests/pydnstest/scenario.py
@@ -14,8 +14,8 @@ class Entry:
 
     def __init__(self):
         """ Initialize data entry. """
-        self.match_fields = None
-        self.adjust_fields = None
+        self.match_fields = ['opcode', 'qtype', 'qname']
+        self.adjust_fields = ['copy_id']
         self.origin = '.'
         self.message = dns.message.Message()
         self.sections = []