diff --git a/e2xgrader/exchange/submit.py b/e2xgrader/exchange/submit.py
index d5c656ab..1d22f57c 100644
--- a/e2xgrader/exchange/submit.py
+++ b/e2xgrader/exchange/submit.py
@@ -256,7 +256,7 @@ def init_release(self):
         if self.personalized_outbound:
             self.release_path = os.path.join(
                 outbound_path,
-                os.getenv("JUPYTERHUB_USER"),
+                get_username(),
                 self.coursedir.assignment_id,
             )
         else: