diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 42ac4d97f..808a323ce 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -23,6 +23,11 @@ Updated to:
 
 </para></listitem>
 
+<listitem><para>
+Chapter 6: Removed the Groff command explanation regarding CXXFLAGS
+which has been made obsolete with the update to groff-1.17.1
+</para></listitem>
+
 <listitem><para>
 Chapter 7: Changed $* into "$@" in the functions script. "$@" allows 
 usage of quoted arguments with blanks.