model not generating with oauth2 package

[erikh]

My model:

 18 // User is a user record.
 19 type User struct {
 20   kallax.Model     `table:"users" pk:"id,autoincr"`
 21   ID               int64
 22   Username         string
 23   Token            *oauth2.Token `json:"omitempty"`
 24   LastScannedRepos *time.Time
 25 }

kallax gen output:

model/kallax.go:60:19: invalid operation: cannot indirect oauth2.Token (constant "token" of type /home/erikh/src/github.com/<redacted>/vendor/gopkg.in/oauth2.v3.ResponseType)

Am I doing something wrong? New to this package. Sorry if so!