diff --git a/backend/src/main/java/com/alttd/altitudeweb/controllers/login/LoginController.java b/backend/src/main/java/com/alttd/altitudeweb/controllers/login/LoginController.java
index a8c666d..71b36ee 100644
--- a/backend/src/main/java/com/alttd/altitudeweb/controllers/login/LoginController.java
+++ b/backend/src/main/java/com/alttd/altitudeweb/controllers/login/LoginController.java
@@ -96,16 +96,15 @@ public class LoginController implements LoginApi {
         log.debug("Loading username for logged in user");
         Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
         log.debug("Loaded authentication for logged in user {}", authentication);
-        if (authentication == null || !(authentication.getPrincipal() instanceof OAuth2ResourceServerProperties.Jwt)) {
+        if (authentication == null || !(authentication.getPrincipal() instanceof Jwt jwt)) {
             log.debug("Loaded authentication for logged in user is null or not a jwt");
             return ResponseEntity.status(401).build();
         }
-        Jwt jwt = (Jwt) authentication.getPrincipal();
         String stringUuid = jwt.getSubject();
         UUID uuid;
         try {
-             uuid = UUID.fromString(stringUuid);
-             log.debug("Loaded username for logged in user {}", uuid);
+            uuid = UUID.fromString(stringUuid);
+            log.debug("Loaded username for logged in user {}", uuid);
         } catch (IllegalArgumentException e) {
             return ResponseEntity.badRequest().build();
         }