diff --git a/routers/user/setting.go b/routers/user/setting.go
index 37039041c4..d3b792134d 100644
--- a/routers/user/setting.go
+++ b/routers/user/setting.go
@@ -5,6 +5,8 @@
 package user
 
 import (
+	"strings"
+
 	"github.com/Unknwon/com"
 
 	"github.com/gogits/gogs/models"
@@ -172,7 +174,7 @@ func SettingsSSHKeysPost(ctx *middleware.Context, form auth.AddSSHKeyForm) {
 		}
 
 		// Remove newline characters from form.KeyContent
-		cleanContent := string.Replace(form.Content, "\n", "", -1)
+		cleanContent := strings.Replace(form.Content, "\n", "", -1)
 
 		if ok, err := models.CheckPublicKeyString(cleanContent); !ok {
 			ctx.Flash.Error(ctx.Tr("form.invalid_ssh_key", err.Error()))