diff --git a/victoria-metrics/alertmanager.config.yml b/victoria-metrics/alertmanager.config.yml
index 1f64807..a68e32e 100644
--- a/victoria-metrics/alertmanager.config.yml
+++ b/victoria-metrics/alertmanager.config.yml
@@ -17,6 +17,11 @@ route:
   - '...'
   receiver: ntfy
   routes:
+  - receiver: ntfy
+    matchers:
+    - alertname=DiskUsage
+    group_by:
+    - instance
   - receiver: ntfy
     matchers:
     - alertgroup=Frigate