diff --git a/src/main/java/com/descope/exception/ClientFunctionalException.java b/src/main/java/com/descope/exception/ClientFunctionalException.java
index 414df1e2..6f7b9106 100644
--- a/src/main/java/com/descope/exception/ClientFunctionalException.java
+++ b/src/main/java/com/descope/exception/ClientFunctionalException.java
@@ -21,6 +21,6 @@ public static ClientFunctionalException invalidToken() {
 
   public static ClientFunctionalException invalidToken(Throwable cause) {
     String message = "Invalid Token";
-    return new ClientFunctionalException(message, INVALID_TOKEN);
+    return new ClientFunctionalException(message, INVALID_TOKEN, cause);
   }
 }