diff --git a/pica-metrologie/alertmanager/alertmanager.yml b/pica-metrologie/alertmanager/alertmanager.yml
index fd5372c2bde07464659c87f2fbbaea2b84c3d470..7ae4c83b35f0e5bc660173edcd3889fa50b24ed5 100644
--- a/pica-metrologie/alertmanager/alertmanager.yml
+++ b/pica-metrologie/alertmanager/alertmanager.yml
@@ -46,29 +46,29 @@ inhibit_rules:
 receivers:
 - name: 'mattermost'
   slack_configs:
-  - channel: '$MATTERMOST_CHANNEL'
-    icon_emoji: ":thaenkin:"
-    username: "AlertManager"
-    color: '{{ if eq .CommonLabels.severity "warning" -}}warning{{- else if eq .CommonLabels.severity "critical" -}}danger{{- end -}}'
-    title: "### {{ .CommonLabels.alertname }}"
-    text: "Summary : {{ .CommonAnnotations.summary }}"
-    fields:
-    - title: "Description"
-      value: "{{ .CommonAnnotations.description }}"
-    - title: "Criticity"
-      value: "{{ .CommonLabels.severity }}"
-    actions:
-    - type: button
-      text: ':chart_with_upwards_trend: See dashboard'
-      url: '{{ (index .Alerts 0).Annotations.dashboard }}'
-      style: primary
-    - type: button
-      text: ':no_bell: Silence'
-      url: '{{ template "__alert_silence_link" . }}'
-      style: danger
-    - type: button
-      text: ':grey_question: Documentation'
-      url: "https://wiki.picasoft.net/doku.php?id=technique:adminsys:monitoring:metrologie:stack-picasoft"
+    - channel: '$MATTERMOST_CHANNEL'
+      icon_emoji: ":thaenkin:"
+      username: "AlertManager"
+      color: '{{ if eq .CommonLabels.severity "warning" -}}warning{{- else if eq .CommonLabels.severity "critical" -}}danger{{- end -}}'
+      title: "{{ .CommonLabels.alertname }}"
+      text: "**{{ .CommonLabels.severity }}** : {{ .CommonAnnotations.summary }}"
+      fields:
+      - title: "Description"
+        value: "{{ .CommonAnnotations.description }}"
+        # Would be better with buttons but Slack new buttons are not
+        # yet compatible with Mattermost interactive messages model
+      - title: ":chart_with_upwards_trend: See the data"
+        value: "[Open Grafana]({{ (index .Alerts 0).Annotations.dashboard }})"
+        short: true
+      - title: ':no_bell: Silence'
+        value: '[Silence the alert]({{ template "__alert_silence_link" . }})'
+        short: true
+      - title: ':question: Documentation'
+        value: "[Show documentation](https://wiki.picasoft.net/doku.php?id=technique:adminsys:monitoring:metrologie:stack-picasoft)"
+        short: true
+      - title: ':fire: See all alerts'
+        value: "[AlertManager WebUI](https://alertmanager.picasoft.net)"
+        short: true
 
 templates:
-- templates.tpl
+- /config/templates.tpl
diff --git a/pica-metrologie/alertmanager/templates.tpl b/pica-metrologie/alertmanager/templates.tpl
index 2af54278a20f7e7313044763507647c5d5c2b7ea..38636a9c54af906644d8105131920d5ef2bceac1 100644
--- a/pica-metrologie/alertmanager/templates.tpl
+++ b/pica-metrologie/alertmanager/templates.tpl
@@ -2,8 +2,8 @@
     {{ .ExternalURL }}/#/silences/new?filter=%7B
     {{- range .CommonLabels.SortedPairs -}}
         {{- if ne .Name "alertname" -}}
-            {{- .Name }}%3D"{{- .Value -}}"%2C%20
+            {{- .Name }}%3D'{{- .Value -}}'%2C%20
         {{- end -}}
     {{- end -}}
-    alertname%3D"{{ .CommonLabels.alertname }}"%7D
+    alertname%3D'{{ .CommonLabels.alertname }}'%7D
 {{- end }}