diff --git a/migrations/m161109_104201_rename_setting_table.php b/migrations/m161109_104201_rename_setting_table.php
index 983d251..3384ea6 100644
--- a/migrations/m161109_104201_rename_setting_table.php
+++ b/migrations/m161109_104201_rename_setting_table.php
@@ -6,22 +6,15 @@ class m161109_104201_rename_setting_table extends Migration
 {
     public function up()
     {
-        $this->renameTable('{{%Setting}}', '{{%setting}}');
+        if (Yii::$app->db->schema->getTableSchema('setting') === null) {
+            $this->renameTable('{{%Setting}}', '{{%setting}}');
+        }
     }
 
     public function down()
     {
-        $this->renameTable('{{%setting}}', '{{%Setting}}');
+        if (Yii::$app->db->schema->getTableSchema('Setting') === null) {
+            $this->renameTable('{{%setting}}', '{{%Setting}}');
+        }
     }
-
-    /*
-    // Use safeUp/safeDown to run migration code within a transaction
-    public function safeUp()
-    {
-    }
-
-    public function safeDown()
-    {
-    }
-    */
-}
+}
\ No newline at end of file