diff --git a/routers/web/admin/users.go b/routers/web/admin/users.go
index 1f304297c01f..43dbe5c2091b 100644
--- a/routers/web/admin/users.go
+++ b/routers/web/admin/users.go
@@ -171,6 +171,9 @@ func NewUserPost(ctx *context.Context) {
 		case user_model.IsErrEmailAlreadyUsed(err):
 			ctx.Data["Err_Email"] = true
 			ctx.RenderWithErr(ctx.Tr("form.email_been_used"), tplUserNew, &form)
+		case user_model.IsErrEmailCharIsNotSupported(err):
+			ctx.Data["Err_Email"] = true
+			ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplUserNew, &form)
 		case user_model.IsErrEmailInvalid(err):
 			ctx.Data["Err_Email"] = true
 			ctx.RenderWithErr(ctx.Tr("form.email_invalid"), tplUserNew, &form)