diff --git a/README.md b/README.md
index c5c74b0..c1f088e 100644
--- a/README.md
+++ b/README.md
@@ -118,7 +118,7 @@ package main
 
 import (
   "fmt"
-  "io/ioutil"
+  "os"
 
   "github.com/h2non/filetype"
 )