diff --git a/src/main/java/org/gcube/common/authorization/utils/secret/JWTSecret.java b/src/main/java/org/gcube/common/authorization/utils/secret/JWTSecret.java
index 40a74df..147a32c 100644
--- a/src/main/java/org/gcube/common/authorization/utils/secret/JWTSecret.java
+++ b/src/main/java/org/gcube/common/authorization/utils/secret/JWTSecret.java
@@ -133,7 +133,7 @@ public class JWTSecret extends Secret {
 		if(clientInfo==null) {
 			User user = getUser();
 			if(user.isApplication()) {
-				clientInfo = new ExternalServiceInfo(user.getUsername(), "UNKNOWN");
+				clientInfo = new ExternalServiceInfo(user.getUsername(), "unknown");
 			}else {
 				clientInfo = new UserInfo(user.getUsername(), new ArrayList<>(user.getRoles()), user.getEmail(), user.getGivenName(), user.getFamilyName());
 			}