diff --git a/server/utils/oidc-provider.ts b/server/utils/oidc-provider.ts
index 4da4e2a..37d5d19 100644
--- a/server/utils/oidc-provider.ts
+++ b/server/utils/oidc-provider.ts
@@ -23,6 +23,9 @@ export async function getOidcProvider() {
   _provider = new Provider(issuer, {
     adapter: MongoAdapter,
 
+    // Trust X-Forwarded-Proto from Traefik reverse proxy
+    proxy: true,
+
     clients: [
       {
         client_id: process.env.OIDC_CLIENT_ID || "outline-wiki",