diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index da7071f39..e696ec13f 100644
--- a/doc/Guidebook.mn
+++ b/doc/Guidebook.mn
@@ -24,7 +24,7 @@
 .ds vr "NetHack 3.6
 .ds f0 "\*(vr
 .ds f1
-.ds f2 "November 27, 2018
+.ds f2 "November 29, 2018
 .
 .\" A note on some special characters:
 .\" \(lq = left double quote
diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index bfda263af..daeefcf7c 100644
--- a/doc/Guidebook.tex
+++ b/doc/Guidebook.tex
@@ -45,7 +45,7 @@
 %.au
 \author{Original version - Eric S. Raymond\\
 (Edited and expanded for 3.6 by Mike Stephenson and others)}
-\date{November 27, 2018}
+\date{November 29, 2018}
 
 \maketitle