diff --git a/pyproject.toml b/pyproject.toml
index 71db99e393..5b2146b409 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,7 @@
 [tool.pytest.ini_options]
 markers = [
     "slow: marks tests as slow",
+    "validates_models: marks tests as one which validates service models",
 ]
 
 [tool.isort]
diff --git a/tests/functional/test_paginator_config.py b/tests/functional/test_paginator_config.py
index 3b159416d3..418a029da4 100644
--- a/tests/functional/test_paginator_config.py
+++ b/tests/functional/test_paginator_config.py
@@ -150,6 +150,7 @@ def _pagination_configs():
             yield (op_name, single_config, service_model)
 
 
+@pytest.mark.validates_models
 @pytest.mark.parametrize(
     "operation_name, page_config, service_model", _pagination_configs()
 )