diff --git a/test-nspawn b/test-nspawn
index 540cafa..4afdc1f 100755
--- a/test-nspawn
+++ b/test-nspawn
@@ -21,6 +21,7 @@ then
     apt-key add entrouvert.gpg
     apt update
     /etc/init.d/postgresql start
+    hostname jenkins
     PORT=`pg_lsclusters | tail -n1 | awk '{ print $3 }'`
     echo 'cd /opt/publik-devinst; ansible-playbook -i inventory.yml -e "{postgresql_port: '$PORT'}" install.yml'
     su testuser -l -c 'cd /opt/publik-devinst; ansible-playbook -i inventory.yml -e "{postgresql_port: '$PORT'}" install.yml'