diff --git a/frontend/apps/cloudstorage/ftp.lua b/frontend/apps/cloudstorage/ftp.lua
index e1d34d5ad..398c09578 100644
--- a/frontend/apps/cloudstorage/ftp.lua
+++ b/frontend/apps/cloudstorage/ftp.lua
@@ -7,6 +7,7 @@ local MultiInputDialog = require("ui/widget/multiinputdialog")
 local ReaderUI = require("apps/reader/readerui")
 local Screen = require("device").screen
 local UIManager = require("ui/uimanager")
+local ltn12 = require("ltn12")
 local logger = require("logger")
 local util = require("util")
 local _ = require("gettext")