diff --git a/controllers/base.go b/controllers/base.go
index b0345e68..4aa667ab 100644
--- a/controllers/base.go
+++ b/controllers/base.go
@@ -9,7 +9,6 @@ import (
 	"github.com/lifei6671/mindoc/models"
 	"io"
 	"strings"
-	"github.com/russross/blackfriday"
 )
 
 type BaseController struct {