diff --git a/model/clusters_mgmt/v2alpha1/node_pool_state_type.model b/model/clusters_mgmt/v2alpha1/node_pool_state_type.model
index 9636d829..54420f78 100644
--- a/model/clusters_mgmt/v2alpha1/node_pool_state_type.model
+++ b/model/clusters_mgmt/v2alpha1/node_pool_state_type.model
@@ -21,4 +21,8 @@ class NodePoolState {
 
     // Detailed user friendly status for node pool state.
     Details String
+
+    //Timestamp when the the state change las time. Using the format defined in
+    // [RFC3339](https://www.ietf.org/rfc/rfc3339.txt).
+    UpdatedTimestamp 
 }