diff --git a/scripts/py_matter_yamltests/matter_yamltests/parser.py b/scripts/py_matter_yamltests/matter_yamltests/parser.py
index cb17d7a35846f8..9c5b6247380d5f 100644
--- a/scripts/py_matter_yamltests/matter_yamltests/parser.py
+++ b/scripts/py_matter_yamltests/matter_yamltests/parser.py
@@ -690,14 +690,21 @@ def _response_constraints_validation(self, response, result):
             received_value = response.get('value')
             if not self.is_attribute:
                 expected_name = value.get('name')
-                response_type_name = self._test.response_mapping.get(
-                    expected_name)
                 if received_value is None or expected_name not in received_value:
                     received_value = None
                 else:
                     received_value = received_value.get(
                         expected_name) if received_value else None
 
+                if self._test.response_mapping:
+                    response_type_name = self._test.response_mapping.get(
+                        expected_name)
+                else:
+                    # We don't have a mapping for this type. This happens for pseduo clusters.
+                    # If there is a constraint check for the type it is likely an incorrect
+                    # constraint check by the test writter.
+                    response_type_name = None
+
             constraints = get_constraints(value['constraints'])
 
             if all([constraint.is_met(received_value, response_type_name) for constraint in constraints]):