--- Digest-Hashcash/MANIFEST	2009/07/18 05:58:30	1.2
+++ Digest-Hashcash/MANIFEST	2015/07/22 10:33:08	1.3
@@ -3,6 +3,7 @@
 MANIFEST
 COPYING
 Makefile.PL
+perlmulticore.h
 Hashcash.pm
 Hashcash.xs
 t/00_load.t