diff --git a/chapter06/gettext.xml b/chapter06/gettext.xml
index 1213b2265..6cd3e1a4f 100644
--- a/chapter06/gettext.xml
+++ b/chapter06/gettext.xml
@@ -62,7 +62,7 @@ sed -i 's/test-lock..EXEEXT.//' gettext-tools/gnulib-tests/Makefile.in</userinpu
    to be in metainfo.{its,loc},  When updating, check BLFS gnome-screenshot. -->
    <para>Now fix a configuration file:</para>
 
-<screen><userinput remap="pre">sed -e '/AppData/N;N;p;s/\.appdata\./.metainfo./' \
+<screen><userinput remap="pre">sed -e '/AppData/{N;N;p;s/\.appdata\./.metainfo./}' \
     -i gettext-tools/its/appdata.loc</userinput></screen>
 
     <para>Prepare Gettext for compilation:</para>