1 files changed, 3 insertions, 0 deletions

diff --git a/doc/developer-guidelines.sgml b/doc/developer-guidelines.sgml
index fe21bbaa..39fa00d2 100644
--- a/doc/developer-guidelines.sgml
+++ b/doc/developer-guidelines.sgml
@@ -650,6 +650,9 @@ update the THANKS.in file.</para>
 
       <orderedlist>
         <listitem>
+          <para>Include copyright and license information in all files</para>
+        </listitem>
+        <listitem>
           <para>The standard command options are supported (--help, --version,
           --timeout, --warning, --critical)</para>
         </listitem>