diff --git a/ox/mininova.py b/ox/mininova.py
index 0a75bd5..948197b 100644
--- a/ox/mininova.py
+++ b/ox/mininova.py
@@ -61,6 +61,8 @@ def exists(mininovaId):
   data = oxutils.net.getUrl("http://www.mininova.org/tor/%s" % mininovaId)
   if not data or 'Torrent not found...' in data:
     return False
+  if 'tracker</a> of this torrent requires registration.' in data:
+    return False
   return True
 
 def getData(mininovaId):