diff --git a/proj/y2t/handler.php b/proj/y2t/handler.php
index c2ae149..4f9b7b8 100644
--- a/proj/y2t/handler.php
+++ b/proj/y2t/handler.php
@@ -59,7 +59,7 @@
 */
 ?>
 
-<Copybox v-bind:txt="check"></Copybox>
+<Copybox v-bind:txt="'check'"></Copybox>
 
 </div>
 <script src="assets/js/vue.min.js"></script>