diff --git a/rootdir.go b/rootdir.go
index 9ead788..4680082 100644
--- a/rootdir.go
+++ b/rootdir.go
@@ -1,6 +1,7 @@
 package maymoon
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"path/filepath"