--- a/doc/make_doc
+++ b/doc/make_doc
@@ -12,4 +12,5 @@
 
 echo "Creating HTML documentation"
 mkdir -p ../htm
+export GAP_CONVERT_DATE="July 2022"
 /usr/share/gap/etc/convert.pl -c -i -u -n crystcat . ../htm
--- a/doc/manual.tex
+++ b/doc/manual.tex
@@ -39,7 +39,7 @@
   \centerline{\tt gaehler@math.uni-bielefeld.de}
   \vfill
 
-  \centerline{\secfont{\Month} \Year}
+  \centerline{\secfont{July} 2022}
 
   \vfill
   \centerline{Copyright {\copyright} 1999 by 
