diff --git a/public/partials/admin/queues.htm b/public/partials/admin/queues.htm
index 808fbaf..d3c6c9a 100644
--- a/public/partials/admin/queues.htm
+++ b/public/partials/admin/queues.htm
@@ -29,7 +29,7 @@
           </div>
           <div>
             <pre
-              ng-repeat="stack in job.stacktrace"
+              ng-repeat="stack in job.stacktrace track by $index"
             ><code ng-bind="stack"></code></pre>
           </div>
         </div>
@@ -100,7 +100,7 @@
           </div>
           <div>
             <pre
-              ng-repeat="stack in job.stacktrace"
+              ng-repeat="stack in job.stacktrace track by $index"
             ><code ng-bind="stack"></code></pre>
           </div>
         </div>