diff --git a/Application/Admin/Controller/FileController.class.php b/Application/Admin/Controller/FileController.class.php
index fbd7c0763..24f32d3a4 100644
--- a/Application/Admin/Controller/FileController.class.php
+++ b/Application/Admin/Controller/FileController.class.php
@@ -205,7 +205,7 @@ class FileController extends AdminController
         // dd(I('icon'));
 
         if (I('icon')) {
-            if ($_FILES['file']['size'] > 2097152) {
+            if ($_FILES['file']['size'] > 2*1024*1024) {
                 $return = array('status' => 1001, 'info' => '图片大小不得超过2M', 'data' => '');
                 $this->ajaxReturn($return);
             }