diff --git a/calls.doap b/calls.doap
index ea2d169..bfa0964 100644
--- a/calls.doap
+++ b/calls.doap
@@ -25,4 +25,11 @@
       <gnome:userid>devrtz</gnome:userid>
     </foaf:Person>
   </maintainer>
+  <maintainer>
+    <foaf:Person>
+      <foaf:name>Guido Günther</foaf:name>
+      <foaf:mbox rdf:resource="mailto:agx@sigxcpu.org" />
+      <gnome:userid>guidog</gnome:userid>
+    </foaf:Person>
+  </maintainer>
 </Project>