diff --git a/ChangeLog b/ChangeLog
index 804ddf0..5466277 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2001-07-19  Ben Elliston  <bje@redhat.com>
+
+	* config.guess: Detect Linux on the PPC64 architecture.
+
 2001-07-12  Keith Thompson  <kst@sdsc.edu>
 
 	* config.guess: Strip trailing sub-version number from
diff --git a/config.guess b/config.guess
index 6012b39..0399256 100755
--- a/config.guess
+++ b/config.guess
@@ -3,7 +3,7 @@
 #   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
 #   Free Software Foundation, Inc.
 
-timestamp='2001-07-12'
+timestamp='2001-07-19'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -778,6 +778,9 @@ EOF
     ppc:Linux:*:*)
 	echo powerpc-unknown-linux-gnu
 	exit 0 ;;
+    ppc64:Linux:*:*)
+	echo powerpc64-unknown-linux-gnu
+	exit 0 ;;
     alpha:Linux:*:*)
 	case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
 	  EV5)   UNAME_MACHINE=alphaev5 ;;