diff --git a/cmd/kops/rollingupdatecluster.go b/cmd/kops/rollingupdatecluster.go
index e77eace623311..559be9afa3b9d 100644
--- a/cmd/kops/rollingupdatecluster.go
+++ b/cmd/kops/rollingupdatecluster.go
@@ -181,6 +181,7 @@ func NewCmdRollingUpdateCluster(f *util.Factory, out io.Writer) *cobra.Command {
 	cmd.Flags().DurationVar(&options.MasterInterval, "master-interval", options.MasterInterval, "Time to wait between restarting masters")
 	cmd.Flags().DurationVar(&options.NodeInterval, "node-interval", options.NodeInterval, "Time to wait between restarting nodes")
 	cmd.Flags().DurationVar(&options.BastionInterval, "bastion-interval", options.BastionInterval, "Time to wait between restarting bastions")
+	cmd.Flags().DurationVar(&options.PostDrainDelay, "post-drain-delay", options.PostDrainDelay, "Time to wait after draining each node")
 	cmd.Flags().BoolVarP(&options.Interactive, "interactive", "i", options.Interactive, "Prompt to continue after each instance is updated")
 	cmd.Flags().StringSliceVar(&options.InstanceGroups, "instance-group", options.InstanceGroups, "List of instance groups to update (defaults to all if not specified)")
 	cmd.Flags().StringSliceVar(&options.InstanceGroupRoles, "instance-group-roles", options.InstanceGroupRoles, "If specified, only instance groups of the specified role will be updated (e.g. Master,Node,Bastion)")
diff --git a/docs/cli/kops_rolling-update_cluster.md b/docs/cli/kops_rolling-update_cluster.md
index 817912c6f2f15..137771883b076 100644
--- a/docs/cli/kops_rolling-update_cluster.md
+++ b/docs/cli/kops_rolling-update_cluster.md
@@ -78,6 +78,7 @@ kops rolling-update cluster [flags]
   -i, --interactive                    Prompt to continue after each instance is updated
       --master-interval duration       Time to wait between restarting masters (default 5m0s)
       --node-interval duration         Time to wait between restarting nodes (default 4m0s)
+      --post-drain-delay duration      Time to wait after draining each node (default 1m30s)
       --validation-timeout duration    Maximum time to wait for a cluster to validate (default 5m0s)
   -y, --yes                            Perform rolling update immediately, without --yes rolling-update executes a dry-run
 ```