diff --git a/plugins/auth-backend/src/lib/oauth/OAuthAdapter.ts b/plugins/auth-backend/src/lib/oauth/OAuthAdapter.ts
index 2da831950a..c4476752b6 100644
--- a/plugins/auth-backend/src/lib/oauth/OAuthAdapter.ts
+++ b/plugins/auth-backend/src/lib/oauth/OAuthAdapter.ts
@@ -258,8 +258,11 @@ export class OAuthAdapter implements AuthProviderRouteHandlers {
     res: express.Response,
     accessToken: string,
   ) => {
+    const payload = JWT.decode(accessToken) as object & {
+      exp: number;
+    };
     res.cookie(`access-token`, accessToken, {
-      expires: new Date(JWT.decode(accessToken).exp * 1000),
+      expires: new Date(payload?.exp ? payload?.exp * 1000 : 0),
       secure: this.options.secure,
       sameSite: 'lax',
       domain: this.options.cookieDomain,