diff --git a/doc/.gitignore b/doc/.gitignore
index 44d9deb27..8189eeacd 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -1,6 +1,12 @@
+# Guidebook without a suffix is usually a copy of Guidebook.txt.  The
+# latter is managed by git because it is part of the source distribution.
+# We don't want both copies.
 Guidebook
+# various intermediate files or generated output, not to be tracked.
 Guidebook.aux
+Guidebook.dvi
 Guidebook.log
 Guidebook.pdf
-Guidebook.synctex.gz
+Guidebook.ps
+*.synctex.*
 
diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index db16a8423..e82f2f97d 100644
--- a/doc/Guidebook.mn
+++ b/doc/Guidebook.mn
@@ -1,4 +1,4 @@
-.\" $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.286 $ $NHDT-Date: 1540625949 2018/10/27 07:39:09 $
+.\" $NHDT-Branch: NetHack-3.6.2-beta01 $:$NHDT-Revision: 1.292 $ $NHDT-Date: 1546984605 2019/01/08 21:56:45 $
 .\"
 .\" This is an excerpt from the 'roff' man page from the 'groff' package.
 .\" NetHack's Guidebook.mn currently does *not* adhere to these guidelines.
@@ -587,6 +587,8 @@ or (for \(lq#loot\(rq to remove a saddle),
 skip containers and go straight to adjacent monsters.
 The prefix will
 make \(lq#travel\(rq command show a menu of interesting targets in sight.
+In debug mode (aka \(lqwizard mode\(rq), the \(oqm\(cq prefix may also be
+used with the \(lq#teleport\(rq and \(lq#wizlevelport\(rq commands.
 .lp F[yuhjklbn]
 Prefix:  fight a monster (even if you only guess one is there).
 .lp M[yuhjklbn]
diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index 57be65355..b14ec4072 100644
--- a/doc/Guidebook.tex
+++ b/doc/Guidebook.tex
@@ -702,6 +702,8 @@ and go straight to checking inventory,
 or (for ``{\tt \#loot}'' to remove a saddle),
 skip containers and go straight to adjacent monsters. The prefix will
 make ``{\tt \#travel}'' command show a menu of interesting targets in sight.
+In debug mode (aka ``wizard mode''), the `{\tt m}' prefix may also be
+used with the ``{\tt \#teleport}'' and ``{\tt \#wizlevelport}'' commands.
 %.lp
 \item[\tb{F[yuhjklbn]}]
 Prefix:  fight a monster (even if you only guess one is there).