diff --git a/share/man/man9/ktr.9 b/share/man/man9/ktr.9
index b42d34edacfb..ecbd35089d1b 100644
--- a/share/man/man9/ktr.9
+++ b/share/man/man9/ktr.9
@@ -62,7 +62,7 @@ or
 .Xr gdb 1 .
 .Pp
 Events are created and logged in the kernel via the
-.Dv CTR Ns x
+.Dv CTR Ns Ar x
 macros.
 The first parameter is a mask of event types
 .Pq Dv KTR_*