diff --git a/application/admin/controller/oa/Task.php b/application/admin/controller/oa/Task.php
index c2a538c..6d85a19 100644
--- a/application/admin/controller/oa/Task.php
+++ b/application/admin/controller/oa/Task.php
@@ -107,7 +107,7 @@ class Task extends Backend
 
                 $list[$k]['refuse_reason'] = $row['refuse_reason'] ?? '';
                 $list[$k]['fileurl'] = cdnurl($row['prove_file_path']);
-                $list[$k]['filetype'] = pathinfo($list[$k]['url'], PATHINFO_EXTENSION);
+                $list[$k]['filetype'] = pathinfo($list[$k]['fileurl'], PATHINFO_EXTENSION);
             }
 
             $result = array("total" => $list->total(), "rows" => $list->items());