diff --git a/cmd/yorkie/commands.go b/cmd/yorkie/commands.go
index 857d44f47..62e51c6dc 100644
--- a/cmd/yorkie/commands.go
+++ b/cmd/yorkie/commands.go
@@ -45,6 +45,8 @@ func Run() int {
 }
 
 func init() {
+	rootCmd.SetOut(os.Stdout)
+	rootCmd.SetErr(os.Stderr)
 	rootCmd.AddCommand(project.SubCmd)
 	rootCmd.AddCommand(document.SubCmd)
 	rootCmd.AddCommand(context.SubCmd)