diff --git a/src/preview/HomeServer.js b/src/preview/HomeServer.js
index 5080e3b..7736e8c 100644
--- a/src/preview/HomeServer.js
+++ b/src/preview/HomeServer.js
@@ -81,8 +81,8 @@ export class HomeServer {
         const options = {method: "POST", body: "{}", headers};
         const {status, body}  = await this._request(`${this.baseURL}/_matrix/client/r0/register`, options).response();
         if (status === 401 && body) {   // Unauthorized
-            const stages = body.flows?.stages;
-            if (Array.isArray(stages) && stages.includes("m.login.terms")) {
+            const hasTermsStage = body.flows.some(flow => flow.stages.includes("m.login.terms"));
+            if (hasTermsStage) {
                 const privacyPolicy = body.params?.["m.login.terms"]?.policies?.privacy_policy;
                 if (privacyPolicy) {
                     const firstLang = Object.keys(privacyPolicy).find(k => k !== "version");