diff --git a/auth_options.go b/auth_options.go
index 9819e45..efa5961 100644
--- a/auth_options.go
+++ b/auth_options.go
@@ -43,4 +43,8 @@
 	// false, it will not cache these settings, but re-authentication will not be
 	// possible.  This setting defaults to false.
 	AllowReauth bool
+
+	// Token allows users to authenticate (possibly as another user) with an
+	// authentication token.
+	Token string
 }