diff --git a/doc/Guidebook.mn b/doc/Guidebook.mn
index e61a2f78c..c039e3bba 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 7, 2019
+.ds f2 "November 17, 2019
 .
 .\" A note on some special characters:
 .\" \(lq = left double quote
diff --git a/doc/Guidebook.tex b/doc/Guidebook.tex
index 4c42b06f1..4c0edfabc 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 7, 2019}
+\date{November 17, 2019}
 
 \maketitle