diff -ur ps.orig/keyword.c ps.new/keyword.c
--- /usr/src/bin/ps/keyword.c	2007-10-28 18:10:36.000000000 +0100
+++ /usr/src/bin/ps/keyword.c	2008-12-26 20:14:03.000000000 +0100
@@ -83,7 +83,7 @@
 		NULL, 0},
 	{"command", "COMMAND", NULL, COMM|LJUST|USER, command, NULL, 16, 0,
 		CHAR, NULL, 0},
-	{"cpu", "CPU", NULL, 0, kvar, NULL, 3, KOFF(ki_estcpu), UINT, "d",
+	{"cpu", "CPU", NULL, 0, kvar, NULL, 3, KOFF(ki_lastcpu), CHAR, "d",
 		0},
 	{"cputime", "", "time", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
 	{"emul", "EMUL", NULL, LJUST, emulname, NULL, EMULLEN, 0, CHAR,