diff --git a/themes/powerarrow/theme.lua b/themes/powerarrow/theme.lua
index c21f8fc..a499c55 100644
--- a/themes/powerarrow/theme.lua
+++ b/themes/powerarrow/theme.lua
@@ -229,7 +229,7 @@ local tempicon = wibox.widget.imagebox(theme.widget_temp)
 -- / fs
 local fsicon = wibox.widget.imagebox(theme.widget_hdd)
 --[[ commented because it needs Gio/Glib >= 2.54
-theme.fs = lain.widget.fs({
+local fs = lain.widget.fs({
     notification_preset = { fg = theme.fg_normal, bg = theme.bg_normal, font = "xos4 Terminus 10" },
     settings = function()
         local fsp = string.format(" %3.2f %s ", fs_now["/"].free, fs_now["/"].units)