diff --git a/usr.bin/truss/truss.1 b/usr.bin/truss/truss.1
index e7b36318741..5c75bacc587 100644
--- a/usr.bin/truss/truss.1
+++ b/usr.bin/truss/truss.1
@@ -1,6 +1,6 @@
 .\" $FreeBSD$
 .\"
-.Dd February 23, 2016
+.Dd July 24, 2017
 .Dt TRUSS 1
 .Os
 .Sh NAME
@@ -101,6 +101,7 @@ Do the same, but put the output into a file:
 Follow an already-running process:
 .Dl $ truss -p 34
 .Sh SEE ALSO
+.Xr dtrace 1 ,
 .Xr kdump 1 ,
 .Xr ktrace 1 ,
 .Xr ptrace 2 ,