diff --git a/en_US.ISO8859-1/books/fdp-primer/psgml-mode/chapter.sgml b/en_US.ISO8859-1/books/fdp-primer/psgml-mode/chapter.sgml
index 8324cb979f..d912db05c2 100644
--- a/en_US.ISO8859-1/books/fdp-primer/psgml-mode/chapter.sgml
+++ b/en_US.ISO8859-1/books/fdp-primer/psgml-mode/chapter.sgml
@@ -142,7 +142,7 @@
   <programlisting>
     (setq sgml-mode-hook
       '(lambda ()
-         (setq fill-column 78
+         (setq fill-column 70
                indent-tabs-mode nil
                next-line-add-newlines nil
                standard-indent 2)
diff --git a/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.sgml b/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.sgml
index 049007aada..7a69bf0704 100644
--- a/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.sgml
+++ b/en_US.ISO8859-1/books/fdp-primer/writing-style/chapter.sgml
@@ -245,7 +245,7 @@ V
 
       <programlisting>augroup sgmledit
   autocmd FileType sgml set formatoptions=cq2l " Special formatting options
-  autocmd FileType sgml set textwidth=78       " Wrap lines at 78 columns
+  autocmd FileType sgml set textwidth=70       " Wrap lines at 70 columns
   autocmd FileType sgml set shiftwidth=2       " Automatically indent
   autocmd FileType sgml set softtabstop=2      " Tab key indents 2 spaces
   autocmd FileType sgml set tabstop=8          " Replace 8 spaces with a tab