diff --git a/nwb_linkml/tests/conftest.py b/nwb_linkml/tests/conftest.py
index 1fe2004..183e742 100644
--- a/nwb_linkml/tests/conftest.py
+++ b/nwb_linkml/tests/conftest.py
@@ -5,6 +5,8 @@ import pytest
 from sybil import Sybil
 from sybil.parsers.rest import DocTestParser, PythonCodeBlockParser
 
+from .fixtures import *  # noqa: F403
+
 pytest_collect_file = Sybil(
     parsers=[
         DocTestParser(optionflags=ELLIPSIS + NORMALIZE_WHITESPACE),
diff --git a/nwb_linkml/tests/fixtures.py b/nwb_linkml/tests/fixtures.py
index a857847..0490d89 100644
--- a/nwb_linkml/tests/fixtures.py
+++ b/nwb_linkml/tests/fixtures.py
@@ -17,6 +17,19 @@ from nwb_linkml.adapters.namespaces import NamespacesAdapter
 from nwb_linkml.io import schema as io
 from nwb_schema_language import Attribute, Dataset, Group
 
+__all__ = [
+    "NWBSchemaTest",
+    "TestSchemas",
+    "data_dir",
+    "linkml_schema",
+    "linkml_schema_bare",
+    "nwb_core_fixture",
+    "nwb_schema",
+    "tmp_output_dir",
+    "tmp_output_dir_func",
+    "tmp_output_dir_mod",
+]
+
 
 @pytest.fixture(scope="session")
 def tmp_output_dir() -> Path: