diff --git a/ox/torrent/makemetafile.py b/ox/torrent/makemetafile.py
index f4b0ca0..31d6ebe 100644
--- a/ox/torrent/makemetafile.py
+++ b/ox/torrent/makemetafile.py
@@ -156,7 +156,7 @@ def make_meta_file(file, url, params = {}, flag = Event(),
     if flag.isSet():
         return
     check_info(info)
-    h = open(f, 'wb')
+    h = open(f.encode(encoding), 'wb')
     data = {'info': info, 'announce': url.strip(), 'creation date': int(time())}
     
     if 'comment' in params and params['comment']: