diff --git a/share/man/man4/ddb.4 b/share/man/man4/ddb.4
index 3e88aa5d93b..010ab00d1c9 100644
--- a/share/man/man4/ddb.4
+++ b/share/man/man4/ddb.4
@@ -60,7 +60,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 6, 2016
+.Dd July 13, 2016
 .Dt DDB 4
 .Os
 .Sh NAME
@@ -535,6 +535,11 @@ modifier will alter the display to show VM map
 addresses for the process and not show other information.
 .\"
 .Pp
+.It Ic show Cm all trace
+.It Ic alltrace
+.Xc
+Show a stack trace for every thread in the system.
+.Pp
 .It Ic show Cm all ttys
 Show all TTY's within the system.
 Output is similar to