diff --git a/docs/cli/kops_update_cluster.md b/docs/cli/kops_update_cluster.md
index 43e6e6b812311..dacc54eca3f83 100644
--- a/docs/cli/kops_update_cluster.md
+++ b/docs/cli/kops_update_cluster.md
@@ -26,6 +26,7 @@ kops update cluster
       --create-kube-config      Will control automatically creating the kube config file on your local filesystem (default true)
       --model string            Models to apply (separate multiple models with commas) (default "config,proto,cloudup")
       --out string              Path to write any local output
+      --phase string            Subset of tasks to run
       --ssh-public-key string   SSH public key to use (deprecated: use kops create secret instead)
       --target string           Target - direct, terraform, cloudformation (default "direct")
       --yes                     Actually create cloud resources