diff --git a/src/pyrocore/util/metafile.py b/src/pyrocore/util/metafile.py
index <HASH>..<HASH> 100644
--- a/src/pyrocore/util/metafile.py
+++ b/src/pyrocore/util/metafile.py
@@ -446,7 +446,7 @@ class Metafile(object):
             else:
                 piece_size_exp = 0
 
-        piece_size_exp = min(max(15, piece_size_exp), 23)
+        piece_size_exp = min(max(15, piece_size_exp), 24)
         piece_size = 2 ** piece_size_exp
 
         # Build info hash
... and some web source say <I>M is ok - you'll only hit this with monster torrents anyway