diff --git a/crud/default/views/_expand.php b/crud/default/views/_expand.php
index e31a1a6..749256f 100644
--- a/crud/default/views/_expand.php
+++ b/crud/default/views/_expand.php
@@ -5,6 +5,8 @@
 
 use yii\helpers\Inflector;
 use yii\helpers\StringHelper;
+
+$pk = empty($generator->tableSchema->primaryKey) ? $generator->tableSchema->getColumnNames()[0] : $generator->tableSchema->primaryKey[0];
 ?>
 <?= "<?php" ?>
 
@@ -14,6 +16,7 @@
 $items = [
     [
         'label' => '<i class="glyphicon glyphicon-book"></i> '. Html::encode(<?= $generator->generateString(StringHelper::basename($generator->modelClass)) ?>),
+        'options' => ['id' => "tab_<?= StringHelper::basename($generator->modelClass) ?>_{$model-><?= $pk ?>}"],
         'content' => $this->render('_detail', [
             'model' => $model,
         ]),
@@ -22,6 +25,7 @@
     <?php if ($rel[2] && isset($rel[3]) && !in_array($name, $generator->skippedRelations)): ?>
     [
         'label' => '<i class="glyphicon glyphicon-book"></i> '. Html::encode(<?= $generator->generateString(Inflector::camel2words($rel[1])) ?>),
+        'options' => ['id' => "tab_<?= $rel[1] ?>_{$model-><?= $pk ?>}"],
         'content' => $this->render('_data<?= $rel[1] ?>', [
             'model' => $model,
             'row' => $model-><?= $name ?>,
@@ -30,6 +34,7 @@
     <?php elseif(isset($rel[$generator::REL_IS_MASTER]) && !$rel[$generator::REL_IS_MASTER]): ?>
     [
         'label' => '<i class="glyphicon glyphicon-book"></i> '. Html::encode(<?= $generator->generateString(Inflector::camel2words($rel[1])) ?>),
+        'options' => ['id' => "tab_<?= $rel[1] ?>_{$model-><?= $pk ?>}"],
         'content' => $this->render('_data<?= $rel[1] ?>', [
         'model' => $model-><?= $name ?>
         ]),