diff --git a/auth/auth0/auth0.go b/auth/auth0/auth0.go
index dd0aba7..b607e71 100644
--- a/auth/auth0/auth0.go
+++ b/auth/auth0/auth0.go
@@ -2,6 +2,7 @@ package auth0
 
 import (
 	"context"
+	"encoding/gob"
 	"fmt"
 	"net/http"
 	"net/url"
@@ -11,6 +12,10 @@ import (
 	"git.citc.tech/go/web/auth/auth0/authenticator"
 )
 
+func init() {
+	gob.Register(SessionUser{})
+}
+
 type Logger interface {
 	Debug(msg string, args ...any)
 	Info(msg string, args ...any)