diff -r e910ea39253f Lib/pickletools.py
--- a/Lib/pickletools.py	Sun Oct 11 23:03:47 2015 -0700
+++ b/Lib/pickletools.py	Mon Oct 12 12:44:41 2015 +0300
@@ -2440,6 +2440,7 @@ def dis(pickle, out=None, memo=None, ind
         if opcode.name in ("PUT", "BINPUT", "LONG_BINPUT", "MEMOIZE"):
             if opcode.name == "MEMOIZE":
                 memo_idx = len(memo)
+                markmsg = "(as %d)" % memo_idx
             else:
                 assert arg is not None
                 memo_idx = arg