diff --git a/calls.doap b/calls.doap
index 9562425..e22c340 100644
--- a/calls.doap
+++ b/calls.doap
@@ -21,10 +21,14 @@
       <foaf:mbox rdf:resource="mailto:bob.ham@puri.sm" />
       <foaf:mbox rdf:resource="mailto:rah@settrans.net" />
     </foaf:Person>
+  </maintainer>
+  <maintainer>
     <foaf:Person>
       <foaf:name>Julian Sparber</foaf:name>
       <foaf:mbox rdf:resource="mailto:julian.sparber@puri.sm" />
     </foaf:Person>
+  </maintainer>
+  <maintainer>
     <foaf:Person>
       <foaf:name>Evangelos Ribeiro Tzaras</foaf:name>
       <foaf:mbox rdf:resource="mailto:devrtz@fortysixandtwo.eu" />