diff --git a/zip/zip/Makefile.am b/zip/zip/Makefile.am
index 9653432adf..b2c16d8e11 100644
--- a/zip/zip/Makefile.am
+++ b/zip/zip/Makefile.am
@@ -4,6 +4,6 @@ EXTRA_DIST = deflate.c   tailor.h  z_api.h	  z_crypt.h    z_ttyio.h   ziperr.h
 ebcdic.h    trees.c   z_crc32.c   z_fileio.c   zip.c	   zipfile.c				\
 mktime.c    util.c    z_crctab.c  z_globals.c  zip.h	   zipnote.c				\
 revision.h  z_api.c   z_crypt.c   z_ttyio.c    zipcloak.c  zipsplit.c				\
-BUGS	     CHANGES      README	 macos      TODO	   match.S     win32	  	\
+BUGS	     CHANGES      README	 macos      TODO	   match.S     unix win32  	\
 INSTALL      WHATSNEW	  LICENSE      WHERE	   MANUAL	   crc_i386.S