diff --git a/swh/web/assets/src/bundles/vault/vault-ui.js b/swh/web/assets/src/bundles/vault/vault-ui.js
--- a/swh/web/assets/src/bundles/vault/vault-ui.js
+++ b/swh/web/assets/src/bundles/vault/vault-ui.js
@@ -146,10 +146,10 @@
     .then(cookingTasks => {
       let table = $('#vault-cooking-tasks tbody');
       for (let i = 0; i < cookingTasks.length; ++i) {
-        let cookingTask = tasks[cookingTasks[i].obj_id];
-        cookingTask.status = cookingTasks[i].status;
+        let cookingTask = tasks[cookingTasks[i].object_id];
+        cookingTask.status = cookingTasks[i].task_status;
         cookingTask.fetch_url = cookingTasks[i].fetch_url;
-        cookingTask.progress_message = cookingTasks[i].progress_message;
+        cookingTask.progress_message = cookingTasks[i].progress_msg;
       }
       for (let i = 0; i < vaultCookingTasks.length; ++i) {
         let cookingTask = vaultCookingTasks[i];