diff --git a/staging/src/k8s.io/kubectl/pkg/cmd/create/create_clusterrolebinding.go b/staging/src/k8s.io/kubectl/pkg/cmd/create/create_clusterrolebinding.go
index 5959b11877d..8114bda0076 100644
--- a/staging/src/k8s.io/kubectl/pkg/cmd/create/create_clusterrolebinding.go
+++ b/staging/src/k8s.io/kubectl/pkg/cmd/create/create_clusterrolebinding.go
@@ -101,9 +101,9 @@ func NewCmdCreateClusterRoleBinding(f cmdutil.Factory, ioStreams genericclioptio
 	cmdutil.AddDryRunFlag(cmd)
 	cmd.Flags().StringVar(&o.ClusterRole, "clusterrole", "", i18n.T("ClusterRole this ClusterRoleBinding should reference"))
 	cmd.MarkFlagRequired("clusterrole")
-	cmd.Flags().StringArrayVar(&o.Users, "user", o.Users, "Usernames to bind to the clusterrole")
-	cmd.Flags().StringArrayVar(&o.Groups, "group", o.Groups, "Groups to bind to the clusterrole")
-	cmd.Flags().StringArrayVar(&o.ServiceAccounts, "serviceaccount", o.ServiceAccounts, "Service accounts to bind to the clusterrole, in the format <namespace>:<name>")
+	cmd.Flags().StringArrayVar(&o.Users, "user", o.Users, "Usernames to bind to the clusterrole. The flag can be repeated to add multiple users.")
+	cmd.Flags().StringArrayVar(&o.Groups, "group", o.Groups, "Groups to bind to the clusterrole. The flag can be repeated to add multiple groups.")
+	cmd.Flags().StringArrayVar(&o.ServiceAccounts, "serviceaccount", o.ServiceAccounts, "Service accounts to bind to the clusterrole, in the format <namespace>:<name>. The flag can be repeated to add multiple service accounts.")
 	cmdutil.AddFieldManagerFlagVar(cmd, &o.FieldManager, "kubectl-create")
 
 	// Completion for relevant flags
diff --git a/staging/src/k8s.io/kubectl/pkg/cmd/create/create_rolebinding.go b/staging/src/k8s.io/kubectl/pkg/cmd/create/create_rolebinding.go
index a35bdaa57a6..33c96cea760 100644
--- a/staging/src/k8s.io/kubectl/pkg/cmd/create/create_rolebinding.go
+++ b/staging/src/k8s.io/kubectl/pkg/cmd/create/create_rolebinding.go
@@ -104,9 +104,9 @@ func NewCmdCreateRoleBinding(f cmdutil.Factory, ioStreams genericclioptions.IOSt
 	cmdutil.AddDryRunFlag(cmd)
 	cmd.Flags().StringVar(&o.ClusterRole, "clusterrole", "", i18n.T("ClusterRole this RoleBinding should reference"))
 	cmd.Flags().StringVar(&o.Role, "role", "", i18n.T("Role this RoleBinding should reference"))
-	cmd.Flags().StringArrayVar(&o.Users, "user", o.Users, "Usernames to bind to the role")
-	cmd.Flags().StringArrayVar(&o.Groups, "group", o.Groups, "Groups to bind to the role")
-	cmd.Flags().StringArrayVar(&o.ServiceAccounts, "serviceaccount", o.ServiceAccounts, "Service accounts to bind to the role, in the format <namespace>:<name>")
+	cmd.Flags().StringArrayVar(&o.Users, "user", o.Users, "Usernames to bind to the role. The flag can be repeated to add multiple users.")
+	cmd.Flags().StringArrayVar(&o.Groups, "group", o.Groups, "Groups to bind to the role. The flag can be repeated to add multiple groups.")
+	cmd.Flags().StringArrayVar(&o.ServiceAccounts, "serviceaccount", o.ServiceAccounts, "Service accounts to bind to the role, in the format <namespace>:<name>. The flag can be repeated to add multiple service accounts.")
 	cmdutil.AddFieldManagerFlagVar(cmd, &o.FieldManager, "kubectl-create")
 	return cmd
 }