diff --git a/README.md b/README.md
index 834f287..2f8175b 100644
--- a/README.md
+++ b/README.md
@@ -214,6 +214,7 @@ package cmd
 
 import (
 	"fmt"
+	"os"
 
 	homedir "github.com/mitchellh/go-homedir"
 	"github.com/spf13/cobra"
@@ -255,6 +256,11 @@ func init() {
 	rootCmd.AddCommand(initCmd)
 }
 
+func er(msg interface{}) {
+	fmt.Println("Error:", msg)
+	os.Exit(1)
+}
+
 func initConfig() {
 	if cfgFile != "" {
 		// Use config file from the flag.