diff --git a/evennia/scripts/scripts.py b/evennia/scripts/scripts.py
index eafb87ee72..2cade33281 100644
--- a/evennia/scripts/scripts.py
+++ b/evennia/scripts/scripts.py
@@ -292,7 +292,7 @@ class DefaultScript(ScriptBase):
     def at_idmapper_flush(self):
         """If we're flushing this object, make sure the LoopingCall is gone too"""
         ret = super(DefaultScript, self).at_idmapper_flush()
-        if ret:
+        if ret and self.ndb._task:
             try:
                 from twisted.internet import reactor
                 global FLUSHING_INSTANCES