diff --git a/.github/workflows/zammad-bot.yaml b/.github/workflows/zammad-bot.yaml
new file mode 100644
index 000000000..c2d75635d
--- /dev/null
+++ b/.github/workflows/zammad-bot.yaml
@@ -0,0 +1,23 @@
+# This bot post a comment when issues with a given label are closed.
+on:
+  issues:
+    types: [closed]
+
+jobs:
+  comment-when-issue-close:
+    if: contains(github.event.issue.labels.*.name, '🏓 retour utilisateur')
+    runs-on: ubuntu-latest
+    steps:
+      # Note: we could detect if the comment was already posted in the issue to
+      # avoid posting it multiple times in case the issue was re-opened and
+      # re-closed. https://github.com/peter-evans/create-or-update-comment
+      - uses: peter-evans/create-or-update-comment@v1
+        with:
+          issue-number: ${{ github.event.issue.number }}
+          body: |
+            Ce ticket vient d'être fermé 🎉
+
+            Il est temps de prévenir les utilisateurs qui nous ont fait ce retour : 
+            https://mon-entreprise.zammad.com/#search/tags%3Aissue-${{ github.event.issue.number }}
+
+            Laissez un 👍 quand c'est fait !