diff --git a/chapter06/file.xml b/chapter06/file.xml
index 674a148ba..8801318cd 100644
--- a/chapter06/file.xml
+++ b/chapter06/file.xml
@@ -45,6 +45,9 @@
     <parameter>-e</parameter> (<parameter>--exclude</parameter>)
     parameter:</para>
 
+<!-- The following sed should not be required after the next version update
+     as the maintainer has fixed it upstream. -->
+
 <screen><userinput remap="pre">sed -i -e '197,+1d' \
        -e '189,+1d' \
        -e 's/token$/tokens/' doc/file.man</userinput></screen>