diff --git a/queue_ui.module b/queue_ui.module
index c69e735..a2536b8 100644
--- a/queue_ui.module
+++ b/queue_ui.module
@@ -305,8 +305,16 @@ function queue_ui_cron_queue_batch_process($queue_name, $cron_queue_info, &$cont
 
   $end = time() + (isset($cron_queue_info['time']) ? $cron_queue_info['time'] : 15);
   while (time() < $end && ($item = $queue->claimItem())) {
-    $function($item->data);
-    $queue->deleteItem($item);
+    try {
+      $function($item->data);
+      $queue->deleteItem($item);
+    }
+    catch (Exception $e) {
+      // In case of exception log it and leave the item in the queue
+      // to be processed again later.
+      drupal_set_message($e->getMessage(), 'error', FALSE);
+      watchdog_exception('queue_ui', $e->getMessage(), NULL, WATCHDOG_ERROR);
+    }
 
     $context['sandbox']['progress']++;
   }