diff --git a/charts/agh3/templates/minio/agh-minio-cm.yml b/charts/agh3/templates/minio/agh-minio-cm.yml
new file mode 100644
index 00000000..ce9ca16e
--- /dev/null
+++ b/charts/agh3/templates/minio/agh-minio-cm.yml
@@ -0,0 +1,11 @@
+{{- if .Values.minio.internal }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: agh-minio-cm
+  labels:
+    {{- include "AGH3.labels" . | nindent 4 }}
+data:
+  MINIO_NOTIFY_WEBHOOK_ENABLE_PRIMARY: "on"
+  MINIO_NOTIFY_WEBHOOK_ENDPOINT_PRIMARY: "http://captain.{{ .Release.Namespace }}.svc.cluster.local:8080/internal/webhook/minio"
+{{- end }}
diff --git a/charts/agh3/values.yaml b/charts/agh3/values.yaml
index 5e1d9785..596293db 100644
--- a/charts/agh3/values.yaml
+++ b/charts/agh3/values.yaml
@@ -340,6 +340,9 @@ minio:
               - "s3:GetObject"
     usersExistingSecrets:
       - agh-minio-users-secret
+  ## @param minio.extraEnvVarsCM
+  ##
+  extraEnvVarsCM: agh-minio-cm
 ## @section Redis parameters
 ##
 redis: