--- deluge/common.py.orig       2011-07-22 20:12:47.000000000 +0200
+++ deluge/common.py    2011-08-08 18:06:44.000000000 +0200
@@ -501,7 +501,7 @@
         return (free * sectors * bytes)
     else:
         disk_data = os.statvfs(path.encode("utf8"))
-        block_size = disk_data.f_bsize
+        block_size = disk_data.f_frsize
         return disk_data.f_bavail * block_size

 def is_ip(ip):