diff --git a/evennia/scripts/scripts.py b/evennia/scripts/scripts.py
index 6764b2e7a8..08a8d4fb0d 100644
--- a/evennia/scripts/scripts.py
+++ b/evennia/scripts/scripts.py
@@ -170,6 +170,10 @@ class DefaultScript(ScriptBase):
 
         """
 
+        if self.ndb._task and self.ndb._task.running:
+            # The task already exists, doesn't start it again
+            return
+
         self.ndb._task = ExtendedLoopingCall(self._step_task)
 
         if self.db._paused_time: