diff --git a/doc/guix.texi b/doc/guix.texi
index d6275fe7ae..87aaae8545 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -37,7 +37,8 @@ Copyright @copyright{} 2017 Carlo Zancanaro@*
 Copyright @copyright{} 2017 Thomas Danckaert@*
 Copyright @copyright{} 2017 humanitiesNerd@*
 Copyright @copyright{} 2017 Christopher Allan Webber@*
-Copyright @copyright{} 2017 Marius Bakke
+Copyright @copyright{} 2017 Marius Bakke@*
+Copyright @copyright{} 2017 Hartmut Goebel
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or