diff --git a/deluge/core/filtermanager.py b/deluge/core/filtermanager.py
index 110443f0d..d806025d3 100644
--- a/deluge/core/filtermanager.py
+++ b/deluge/core/filtermanager.py
@@ -130,8 +130,8 @@ class FilterManager(component.Component):
                 filter_dict[key]  = [value]
 
 
-        if "id"in filter_dict: #optimized filter for id:
-            torrent_ids = filter_dict["id"]
+        if "id" in filter_dict: #optimized filter for id:
+            torrent_ids = list(filter_dict["id"])
             del filter_dict["id"]
         else:
             torrent_ids = self.torrents.get_torrent_list()