diff --git a/ax/storage/sqa_store/utils.py b/ax/storage/sqa_store/utils.py
index 3fc233ff15e..0fab599e094 100644
--- a/ax/storage/sqa_store/utils.py
+++ b/ax/storage/sqa_store/utils.py
@@ -27,6 +27,7 @@
     "_best_arm_predictions",
     "_adapter_kwargs",
     "_candidate_metadata_by_arm_signature",
+    "_cached_session",
     "_curr",
     "_experiment",
     "_gen_metadata",