diff --git a/authentication.go b/authentication.go
index 34034a7d..27538ed2 100644
--- a/authentication.go
+++ b/authentication.go
@@ -43,9 +43,31 @@ type AuthenticationProtocol struct {
 
 // NintendoLoginData holds a nex auth token
 type NintendoLoginData struct {
+	nex.Structure
 	Token string
 }
 
+// ExtractFromStream extracts a AuthenticationInfo structure from a stream
+func (nintendoLoginData *NintendoLoginData) ExtractFromStream(stream *nex.StreamIn) error {
+	var err error
+	var token string
+
+	token, err = stream.ReadString()
+
+	if err != nil {
+		return err
+	}
+
+	nintendoLoginData.Token = token
+
+	return nil
+}
+
+// NewAuthenticationInfo returns a new NintendoLoginData
+func NewNintendoLoginData() *NintendoLoginData {
+	return &NintendoLoginData{}
+}
+
 // AuthenticationInfo holds information about an authentication request
 type AuthenticationInfo struct {
 	*nex.Data
diff --git a/init.go b/init.go
index e18b1bb7..5b815444 100644
--- a/init.go
+++ b/init.go
@@ -9,6 +9,7 @@ var logger = plogger.NewLogger()
 
 func init() {
 	nex.RegisterDataHolderType(NewNintendoCreateAccountData())
+	nex.RegisterDataHolderType(NewNintendoLoginData())
 	nex.RegisterDataHolderType(NewAccountExtraInfo())
 	nex.RegisterDataHolderType(NewGathering())
 }