Vuexfire: Dispatching enhanced action not working

[flatoy]

Store:

let store = new Vuex.Store({
  state: { users: []},
  actions: {
    setUsers: firebaseAction(
      ({ bindFirebaseRef }, { ref }) => {
        bindFirebaseRef('users', ref)
     })
  },
  mutations: {...firebaseMutations}
})

App.vue

created() {
    this.$store.dispatch('setUsers', db.collection('users'))
  }

Then I get

vuexfire.esm.js?3317:527 Uncaught (in promise) TypeError: Cannot read property 'where' of undefined
at eval (vuexfire.esm.js?3317:527)
at new Promise ()
at bind (vuexfire.esm.js?3317:526)
at context.bindFirebaseRef (vuexfire.esm.js?3317:593)
at eval (store.js?c0d6:141)
at Store.firebaseEnhancedActionFn (vuexfire.esm.js?3317:596)
at Array.wrappedActionHandler (vuex.esm.js?2f62:721)
at Store.dispatch (vuex.esm.js?2f62:428)
at Store.boundDispatch [as dispatch] (vuex.esm.js?2f62:322)
at VueComponent.created (App.vue?234e:40)

I believe I've set it up correctly but I cant get it to work with Firestore.

[posva]

if you extract ref from the payload you need to pass an object too:

this.$store.dispatch('setUsers', { ref: db.collection('users') })