diff --git a/usr.sbin/ntp/doc/ntptrace.8 b/usr.sbin/ntp/doc/ntptrace.8
index b063be458335..29d33cb2b236 100644
--- a/usr.sbin/ntp/doc/ntptrace.8
+++ b/usr.sbin/ntp/doc/ntptrace.8
@@ -6,7 +6,7 @@
 .Os
 .Sh NAME
 .Nm ntptrace
-.Nd trace a chain of NTP servers back to the primary source
+.Nd "trace a chain of NTP servers back to the primary source"
 .Sh SYNOPSIS
 .Nm ntptrace
 .Op Fl vdn