diff --git a/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/CustomUserAttrController.java b/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/CustomUserAttrController.java
index 1959590e5a..5b267ae19e 100644
--- a/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/CustomUserAttrController.java
+++ b/spring-boot-modules/spring-boot-keycloak/src/main/java/com/baeldung/keycloak/CustomUserAttrController.java
@@ -24,6 +24,8 @@ public class CustomUserAttrController {
         final Principal principal = (Principal) authentication.getPrincipal();
 
         String dob = "";
+        String userIdByToken = "";
+        String userIdByMapper = "";
 
         if (principal instanceof KeycloakPrincipal) {
 
@@ -31,6 +33,9 @@ public class CustomUserAttrController {
             IDToken token = kPrincipal.getKeycloakSecurityContext()
                 .getIdToken();
 
+            userIdByToken = token.getSubject();
+            userIdByMapper = token.getOtherClaims().get("user_id").toString();
+
             Map<String, Object> customClaims = token.getOtherClaims();
 
             if (customClaims.containsKey("DOB")) {
@@ -39,6 +44,8 @@ public class CustomUserAttrController {
         }
 
         model.addAttribute("username", principal.getName());
+        model.addAttribute("userIDByToken", userIdByToken);
+        model.addAttribute("userIDByMapper", userIdByMapper);
         model.addAttribute("dob", dob);
         return "userInfo";
     }