If I rewrite 2 actions only the first one is actually rewritten

I’m trying to rewrite 2 actions in my custom module.
In my general module index I have

import { wishlistExt } from './wishlist'
extendModule(wishlistExt)

while in the index.ts of my module I have

const extendWishVuex = {
  actions: {
     action1 () {something},
     action2 () {something}
  }
}
export const wishlistExt = {
  key: 'wishlist',
  store: { modules: [{ key: 'wishlist', module: extendWishVuex }] }
}

Action 1 is perfectly rewritten while action 2 not, any idea?