diff --git a/src/caoscrawler/converters.py b/src/caoscrawler/converters.py
index 552ff061519139c689feb0817870800b741ca87b..def7ca1243156b2d25a1f8db387fef25e1cc859c 100644
--- a/src/caoscrawler/converters.py
+++ b/src/caoscrawler/converters.py
@@ -614,6 +614,12 @@ class JSONFileConverter(DictConverter):
 
 
 class _AbstractDictElementConverter(Converter):
+    default_matches = {
+        "accept_text": False,
+        "accept_bool": False,
+        "accept_int": False,
+        "accept_float": False,
+    }
 
     def create_children(self, generalStore: GeneralStore, element: StructureElement):
         return []