diff --git a/python-spec/src/somacore/__init__.py b/python-spec/src/somacore/__init__.py
index 2bdcf0fe..e0da8e43 100644
--- a/python-spec/src/somacore/__init__.py
+++ b/python-spec/src/somacore/__init__.py
@@ -20,6 +20,7 @@
 from .options import BatchSize
 from .options import IOfN
 from .options import ResultOrder
+from .query import AxisColumnNames
 from .query import AxisQuery
 from .query import ExperimentAxisQuery
 
@@ -46,6 +47,7 @@
     "BatchSize",
     "IOfN",
     "ResultOrder",
+    "AxisColumnNames",
     "AxisQuery",
     "ExperimentAxisQuery",
 )
diff --git a/python-spec/src/somacore/query/__init__.py b/python-spec/src/somacore/query/__init__.py
index 6c163d2d..41598d9a 100644
--- a/python-spec/src/somacore/query/__init__.py
+++ b/python-spec/src/somacore/query/__init__.py
@@ -2,6 +2,11 @@
 from . import query
 
 ExperimentAxisQuery = query.ExperimentAxisQuery
+AxisColumnNames = query.AxisColumnNames
 AxisQuery = axis.AxisQuery
 
-__all__ = ("ExperimentAxisQuery",)
+__all__ = (
+    "ExperimentAxisQuery",
+    "AxisColumnNames",
+    "AxisQuery",
+)