diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index b5deefcd0..8a7362014 100644
--- a/doc/Guidebook.mn
+++ b/doc/Guidebook.mn
@@ -1,4 +1,4 @@
-.\" $NHDT-Branch: keni-crashweb2 $:$NHDT-Revision: 1.530 $ $NHDT-Date: 1693082582 2023/08/26 20:43:02 $
+.\" $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.532 $ $NHDT-Date: 1698899756 2023/11/02 04:35:56 $
 .\"
 .\" This is an excerpt from the 'roff' man page from the 'groff' package.
 .\"+--
@@ -30,6 +30,12 @@
 .\" \n(fF=1: fixed-width font (Guidebook.txt), =0: proportional-width font
 .nr fF (\w'f'p)=(\w'F'p) \" compare width of 'f' to that of 'F'
 .
+.\" building Guidebook.txt doesn't have CR font available; groff 1.23 issues
+.\" a warning each time any font can't be loaded; earlier versions silently
+.\" proceeded so lack of CR (fixed-width, moot for plain text) didn't matter
+.if \n(fF .do ftr CR R .fi  \" if using fixed-width, substitute R for CR
+.                           \" (the substitution affects both '\f' and '.ft')
+.
 .ds h0 "NetHack Guidebook
 .ds h1
 .ds h2 %
diff --git a/doc/fixes3-7-0.txt b/doc/fixes3-7-0.txt
index 465608193..2c4c93eb9 100644
--- a/doc/fixes3-7-0.txt
+++ b/doc/fixes3-7-0.txt
@@ -1,4 +1,4 @@
-$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1271 $ $NHDT-Date: 1698264796 2023/10/25 20:13:16 $
+$NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.1277 $ $NHDT-Date: 1698899752 2023/11/02 04:35:52 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -2053,6 +2053,9 @@ sound: added 'windsound' soundlib implementation for use on Windows; the
 sound: add 'qtsound' soundlib implementation for use on any platform
 	with Qt; the interface implementation resides win/Qt/qt_bind.cpp;
 	built on top of Qt.
+documentation: when building plain text Guidebook.txt from Guidebook.mn, avoid
+	attempting to use CR font; change doesn't affect building Guidebook.ps
+	which utilizes CR to get various instances of fixed-width text
 
 
 General New Features