diff --git a/extend/controller/BasicAdmin.php b/extend/controller/BasicAdmin.php
index d05c5be06..8b9d8d454 100644
--- a/extend/controller/BasicAdmin.php
+++ b/extend/controller/BasicAdmin.php
@@ -127,7 +127,8 @@ class BasicAdmin extends Controller
                 for ($i = 1; $i <= $maxNum; $i++) {
                     list($query['rows'], $query['page']) = [$rows, $i];
                     $url = url('@admin') . '#' . $this->request->baseUrl() . '?' . http_build_query($query);
-                    $pageHTML[] = "<option data-url='{$url}' " . ($i === $page->currentPage() ? 'selected' : '') . " value='{$i}'>{$i}</option>";
+                    $selected = $i === intval($page->currentPage()) ? 'selected' : '';
+                    $pageHTML[] = "<option data-url='{$url}' {$selected} value='{$i}'>{$i}</option>";
                 }
                 list($pattern, $replacement) = [['|href="(.*?)"|', '|pagination|'], ['data-open="$1"', 'pagination pull-right']];
                 $html = "<span class='pagination-trigger nowrap'>共 {$totalNum} 条记录，每页显示 <select data-auto-none>" . join('', $rowsHTML) . "</select> 条，共 " . ceil($totalNum / $rows) . " 页当前显示第 <select>" . join('', $pageHTML) . "</select> 页。</span>";