diff --git a/docs/tasks/administer-cluster/configure-upgrade-etcd.md b/docs/tasks/administer-cluster/configure-upgrade-etcd.md
index 4249470678..b672375a9e 100644
--- a/docs/tasks/administer-cluster/configure-upgrade-etcd.md
+++ b/docs/tasks/administer-cluster/configure-upgrade-etcd.md
@@ -194,7 +194,7 @@ If the majority of etcd members have permanently failed, the etcd cluster is con
 
 The upgrade procedure described in this document assumes that either:
 
-1. The etcd cluster has only a single node
+1. The etcd cluster has only a single node.
 2. The etcd cluster has multiple nodes.
 
    In this case, the upgrade procedure requires shutting down the