diff --git a/coremods/control.py b/coremods/control.py
index 8ba2e9d..a94254b 100644
--- a/coremods/control.py
+++ b/coremods/control.py
@@ -25,7 +25,7 @@ def _shutdown(irc=None):
             except:  # But don't allow it to crash the server.
                 log.exception('coremods.control: Error occurred in die() of plugin %s, skipping...', name)
 
-    for ircobj in world.networkobjects.values():
+    for ircobj in world.networkobjects.copy().values():
         # Disconnect all our networks.
         remove_network(ircobj)