diff --git a/tests/model_tests/conftest.py b/tests/model_tests/conftest.py
index 502f3e685..ab71a02cd 100644
--- a/tests/model_tests/conftest.py
+++ b/tests/model_tests/conftest.py
@@ -22,7 +22,7 @@ def tiny_model_paths(request, run_level):
         if not hasattr(item, "callspec"):
             continue
         model_name = item.callspec.params.get("model_name")
-        if model_name is None:
+        if model_name is None or model_name not in DIFFUSION_TEST_SETTINGS:
             continue
         if model_name not in model_paths:
             settings = DIFFUSION_TEST_SETTINGS[model_name]