diff --git a/evennia/objects/objects.py b/evennia/objects/objects.py
index 4a56df1ea..4d9bb05c2 100644
--- a/evennia/objects/objects.py
+++ b/evennia/objects/objects.py
@@ -59,7 +59,7 @@ class ObjectSessionHandler(object):
         self._sessid_cache = list(set(int(val) for val in (self.obj.db_sessid or "").split(",") if val))
         if any(sessid for sessid in self._sessid_cache if sessid not in _SESSIONS):
             # cache is out of sync with sessionhandler! Only retain the ones in the handler.
-            self.sessid_cache = [sessid for sessid in self._sessid_cache if sessid in _SESSIONS]
+            self._sessid_cache = [sessid for sessid in self._sessid_cache if sessid in _SESSIONS]
             self.obj.db_sessid = ",".join(str(val) for val in self._sessid_cache)
             self.obj.save(update_fields=["db_sessid"])