diff --git a/cmd/ppass/ppass.go b/cmd/ppass/ppass.go
index 758e779..d119c91 100644
--- a/cmd/ppass/ppass.go
+++ b/cmd/ppass/ppass.go
@@ -13,6 +13,7 @@ import (
 
 var (
 	dbPath = flag.String("db", "./db", "db file path")
+	debug bool
 )
 
 // Create the root command
@@ -342,6 +343,7 @@ var deleteCmd = &cobra.Command{
 
 func init() {
 	rootCmd.PersistentFlags().String("db", "", "db path")
+	rootCmd.PersistentFlags().BoolVar(&debug, "debug", false, "enable debug mode")
 	rootCmd.MarkPersistentFlagRequired("db")
 
 	peerCmd.AddCommand(addPeerCmd)
@@ -361,7 +363,7 @@ func init() {
 }
 
 func main() {
-	InitLogger(false)
+	cobra.OnInitialize(func() { InitLogger(debug) })
 	if err := rootCmd.Execute(); err != nil {
 		Logger.Error(err)
 		os.Exit(1)