diff --git a/keycloak_collective_portal.py b/keycloak_collective_portal.py
index f774989..f28b79a 100644
--- a/keycloak_collective_portal.py
+++ b/keycloak_collective_portal.py
@@ -26,6 +26,7 @@ oauth.register(
     client_secret=KEYCLOAK_CLIENT_SECRET,
     authorize_url=f"https://{KEYCLOAK_DOMAIN}/auth/realms/{KEYCLOAK_REALM}/protocol/openid-connect/auth",
     access_token_url=f"https://{KEYCLOAK_DOMAIN}/auth/realms/{KEYCLOAK_REALM}/protocol/openid-connect/token",
+    jwks_uri=f"https://{KEYCLOAK_DOMAIN}/auth/realms/{KEYCLOAK_REALM}/protocol/openid-connect/certs",
 )
 
 
diff --git a/templates/index.html b/templates/index.html
index e16ca81..9ab1f20 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -3,6 +3,6 @@
     <title>Home</title>
   </head>
   <body>
-    <p>Hello, {{ user }}</p>
+    <p>Hello, {{ user.preferred_username }}</p>
   </body>
 </html>
