diff --git a/projects/tentacles/src/python/tentacles/templates/jobs_history.html.j2 b/projects/tentacles/src/python/tentacles/templates/jobs_history.html.j2
index d3ff970..30060fe 100644
--- a/projects/tentacles/src/python/tentacles/templates/jobs_history.html.j2
+++ b/projects/tentacles/src/python/tentacles/templates/jobs_history.html.j2
@@ -18,7 +18,11 @@
     {% endif %}
     <div class="job-filename u-flex">
       <label for="filename">File</label>
-      <span name="filename">{{ctx.db.fetch_file(ctx.uid, job.file_id).filename}}</span>
+      <span name="filename">{{ctx.db.fetch_file(ctx.uid, job.file_id).filename or "it's a secret"}}</span>
+    </div>
+    <div class="job-runtime u-flex">
+      <label for="runtime">Runtime</label>
+      <span name="Runtime">{{ (datetime.fromisoformat(job.finished_at) - datetime.fromisoformat(job.started_at)) }}</span>
     </div>
     </div>
   <div class="controls u-flex u-ml-auto">