diff --git a/dicos/70_prometheus.xml b/dicos/70_prometheus.xml
index d0044e0..ca108d3 100644
--- a/dicos/70_prometheus.xml
+++ b/dicos/70_prometheus.xml
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <creole>
     <files>
-		<file filelist='prometheus'   name='/etc/default/prometheus' source='prometheus.defaults'  mkdir='True' rm='True'/>
+      <file filelist='prometheus'   name='/etc/default/prometheus' source='prometheus.defaults'  mkdir='True' rm='True'/>
         <file filelist='prometheus'   name='/etc/prometheus/prometheus.yml'          mkdir='True' rm='True'/>
         <file filelist='alertmanager' name='/etc/prometheus/alertmanager.yml'        mkdir='True' rm='True'/>
-		<file filelist='alertmanager' name='/etc/prometheus/rules.d/alert-rules.yml' mkdir='True' rm='True'/>
+        <file filelist='alertmanager' name='/etc/prometheus/rules.d/alert-rules.yml' mkdir='True' rm='True'/>
+        <file filelist='alertmanager' name='/etc/prometheus/rules.d/predict-rules.yml' mkdir='True' rm='True'/>
         <file filelist='grafana'      name='/etc/grafana/grafana.ini'                mkdir='True' rm='True'/>
 
         <service>prometheus</service>
@@ -147,7 +148,7 @@
     <separators>
         <separator name='activer_grafana'>Services complèmentairse</separator>
         <separator name='prometheusJobName'>Configuration du serveur Prometheus</separator>
-		<separator name='job_name_node'>Configuration des jobs standards</separator>
+        <separator name='job_name_node'>Configuration des jobs standards</separator>
         <separator name='alSMTPHost'>Configuration SMTP pour l'envois des alertes</separator>
         <separator name='alReceiver'>Destinatires</separator>
         <separator name='alRoute'>Rêgles de distribution simples</separator>
diff --git a/tmpl/predict-rules.yml b/tmpl/predict-rules.yml
new file mode 100644
index 0000000..958a587
--- /dev/null
+++ b/tmpl/predict-rules.yml
@@ -0,0 +1,6 @@
+groups:
+  - name: PredictRules
+    rules:
+      - alert: disk_full_within_6_hours
+        expr: predict_linear(node_filesystem_free{job="%%{job_name_node}",mountpoint="/"}[1h], 6 * 3600) < 0
+        for: 5m
\ No newline at end of file