diff --git a/Documentation/etcd-mixin/test.yaml b/Documentation/etcd-mixin/test.yaml
index 2802f6502..24162bd4d 100644
--- a/Documentation/etcd-mixin/test.yaml
+++ b/Documentation/etcd-mixin/test.yaml
@@ -116,7 +116,7 @@ tests:
       - eval_time: 10m
         alertname: etcdHighNumberOfLeaderChanges
         exp_alerts:
- - interval: 1m
+  - interval: 1m
     input_series:
       - series: '((etcd_mvcc_db_total_size_in_bytes/etcd_server_quota_backend_bytes)*100){job="etcd",instance="10.10.10.0"}'
         values: '0 10 20 0 0 10 0 0 30 0 0 0 0 0 0 0'