diff --git a/roles/isc-dhcp-server/tasks/main.yml b/roles/isc-dhcp-server/tasks/main.yml
index 2916941..4d6ef54 100644
--- a/roles/isc-dhcp-server/tasks/main.yml
+++ b/roles/isc-dhcp-server/tasks/main.yml
@@ -27,6 +27,19 @@
     dest: /etc/logrotate.d/dhcp
     mode: 0644
 
+- name: set up cron to reload dhcp re2o service
+  cron:
+    # Do not change this name or idempotence *might* be lost.
+    name: dhcp-re2o-service
+    cron_file: re2o-services
+    minute: "*"
+    hour: "*"
+    day: "*"
+    weekday: "*"
+    month: "*"
+    user: root
+    job: "/usr/bin/python3 /var/local/re2o-services/dhcp/main.py"
+
 - name: restart rsyslog
   systemd:
     name: rsyslog
@@ -50,9 +63,3 @@
     src: dhcp/dhcpd.conf.j2
     dest: /etc/dhcp/dhcpd.conf
     mode: 0600
-
-- name: Ensure that isc-dhcp-server is started / reloaded
-  systemd:
-    name: isc-dhcp-server
-    state: restarted
-    enabled: true
diff --git a/roles/isc-dhcp-server/templates/cron.d/re2o-services b/roles/isc-dhcp-server/templates/cron.d/re2o-services
new file mode 100644
index 0000000..abc05dd
--- /dev/null
+++ b/roles/isc-dhcp-server/templates/cron.d/re2o-services
@@ -0,0 +1,4 @@
+# Régénération des services re2o
+
+# Régénération du dhcp
+* * * * * root /usr/bin/python3 /var/local/re2o-services/dhcp/main.py