diff --git a/highlighter.go b/highlighter.go
index 72ee42a..1f93403 100644
--- a/highlighter.go
+++ b/highlighter.go
@@ -5,7 +5,7 @@ import (
 	"strings"
 	"unicode/utf8"
 	"path/filepath"
-	"os/ioutil"
+	"io/ioutil"
 )
 
 // RunePos returns the rune index of a given byte index