diff --git a/src/main/java/org/gcube/common/keycloak/model/OIDCConstants.java b/src/main/java/org/gcube/common/keycloak/model/OIDCConstants.java
index bd73a12..6b9d25d 100644
--- a/src/main/java/org/gcube/common/keycloak/model/OIDCConstants.java
+++ b/src/main/java/org/gcube/common/keycloak/model/OIDCConstants.java
@@ -11,5 +11,6 @@ public class OIDCConstants {
     public static final String REFRESH_TOKEN_PARAMETER = "refresh_token";
     public static final String CLIENT_ID_PARAMETER = "client_id";
     public static final String CLIENT_SECRET_PARAMETER = "client_secret";
+    public static final String TOKEN_PARAMETER = "token";
 
 }