How to change Lightbulb icon?

[Akavvi]

    config = function ()
      local saga = require('lspsaga')
      saga.init_lsp_saga({
        code_action_icon = 'ﯧ'
      })
    end

I have config with icon from nerd font, but lightbulb icon is still default and not changing.

[Akavvi]

i forgot to compile my config after changes, everything's good!