diff --git a/authentik/providers/saml/processors/assertion.py b/authentik/providers/saml/processors/assertion.py
index f441fe657..20e14e1bf 100644
--- a/authentik/providers/saml/processors/assertion.py
+++ b/authentik/providers/saml/processors/assertion.py
@@ -184,7 +184,7 @@ class AssertionProcessor:
             return name_id
         if name_id.attrib["Format"] == SAML_NAME_ID_FORMAT_TRANSIENT:
             # Use the hash of the user's session, which changes every session
-            session_key: str = self.http_request.user.session.session_key
+            session_key: str = self.http_request.session.session_key
             name_id.text = sha256(session_key.encode()).hexdigest()
             return name_id
         raise UnsupportedNameIDFormat(