diff --git a/security-openid-connect-web-authentication-quickstart/src/main/java/org/acme/security/openid/connect/web/authentication/TokenResource.java b/security-openid-connect-web-authentication-quickstart/src/main/java/org/acme/security/openid/connect/web/authentication/TokenResource.java
index 809857955b..b1a35cd37e 100644
--- a/security-openid-connect-web-authentication-quickstart/src/main/java/org/acme/security/openid/connect/web/authentication/TokenResource.java
+++ b/security-openid-connect-web-authentication-quickstart/src/main/java/org/acme/security/openid/connect/web/authentication/TokenResource.java
@@ -5,6 +5,7 @@
 import jakarta.ws.rs.Path;
 import jakarta.ws.rs.Produces;
 
+import org.eclipse.microprofile.jwt.Claims;
 import org.eclipse.microprofile.jwt.JsonWebToken;
 
 import io.quarkus.oidc.IdToken;
@@ -45,7 +46,7 @@ public String getTokens() {
                 .append("<body>")
                 .append("<ul>");
 
-        Object userName = this.idToken.getClaim("preferred_username");
+        Object userName = this.idToken.getClaim(Claims.preferred_username);
 
         if (userName != null) {
             response.append("<li>username: ").append(userName.toString()).append("</li>");
