2 files changed, 5 insertions, 5 deletions

diff --git a/usr.bin/ktrace/ktrace.1 b/usr.bin/ktrace/ktrace.1
index 07cfc40d775e..83c80c9fd0ee 100644
--- a/usr.bin/ktrace/ktrace.1
+++ b/usr.bin/ktrace/ktrace.1
@@ -43,11 +43,11 @@
 .Op Fl aCcdi
 .Op Fl f Ar trfile
 .Op Fl g Ar pgrp | Fl p Ar pid
-.Op Fl t Ar cnistuw
+.Op Fl t Ar trstr
 .Nm
 .Op Fl adi
 .Op Fl f Ar trfile
-.Op Fl t Ar cnistuw
+.Op Fl t Ar trstr
 .Ar command
 .Sh DESCRIPTION
 The
@@ -105,7 +105,7 @@ processes.
 Enable (disable) tracing on the indicated process id (only one
 .Fl p
 flag is permitted).
-.It Fl t Ar cnistuw
+.It Fl t Ar trstr
 The string argument represents the kernel trace points, one per letter.
 The following table equates the letters with the tracepoints:
 .Pp
diff --git a/usr.bin/ktrace/ktrace.c b/usr.bin/ktrace/ktrace.c
index ef7a6efe918f..397852b98a32 100644
--- a/usr.bin/ktrace/ktrace.c
+++ b/usr.bin/ktrace/ktrace.c
@@ -194,8 +194,8 @@ static void
 usage(void)
 {
 	(void)fprintf(stderr, "%s\n%s\n",
-"usage: ktrace [-aCcdi] [-f trfile] [-g pgrp | -p pid] [-t cnistuw]",
-"       ktrace [-adi] [-f trfile] [-t cnistuw] command");
+"usage: ktrace [-aCcdi] [-f trfile] [-g pgrp | -p pid] [-t trstr]",
+"       ktrace [-adi] [-f trfile] [-t trstr] command");
 	exit(1);
 }