diff --git a/deluge/ui/gtkui/addtorrentdialog.py b/deluge/ui/gtkui/addtorrentdialog.py
index d5c1e5302..7f3275c4c 100644
--- a/deluge/ui/gtkui/addtorrentdialog.py
+++ b/deluge/ui/gtkui/addtorrentdialog.py
@@ -191,7 +191,7 @@ class AddTorrentDialog(component.Component):
                 filedump = lt.bdecode(filedump)
                 _file.close()
             except Exception, e:
-                log.warning("Unable to open %s: e", filename, e)
+                log.warning("Unable to open %s: %s", filename, e)
                 continue
 
             try: