diff --git a/ee/api/chalicelib/core/sessions.py b/ee/api/chalicelib/core/sessions.py
index 18da3e200..4a94d6e21 100644
--- a/ee/api/chalicelib/core/sessions.py
+++ b/ee/api/chalicelib/core/sessions.py
@@ -59,7 +59,8 @@ def get_by_id2_pg(project_id, session_id, context: schemas_ee.CurrentContext, fu
             SELECT
                 s.*,
                 s.session_id::text AS session_id,
-                (SELECT project_key FROM public.projects WHERE project_id = %(project_id)s LIMIT 1) AS project_key
+                (SELECT project_key FROM public.projects WHERE project_id = %(project_id)s LIMIT 1) AS project_key,
+                encode(file_key,'hex') AS file_key
                 {"," if len(extra_query) > 0 else ""}{",".join(extra_query)}
                 {(",json_build_object(" + ",".join([f"'{m}',p.{m}" for m in metadata._get_column_names()]) + ") AS project_metadata") if group_metadata else ''}
             FROM public.sessions AS s {"INNER JOIN public.projects AS p USING (project_id)" if group_metadata else ""}