diff --git a/_includes/refactor-content.html b/_includes/refactor-content.html
index d34ab18..8525900 100644
--- a/_includes/refactor-content.html
+++ b/_includes/refactor-content.html
@@ -126,7 +126,7 @@
       {% assign _new_content = _new_content | append: _snippet
           | append: '<div class="code-header" text-data="'
           | append: _text
-          | append: '"><button data-original-title="'
+          | append: '"><button aria-label="copy" data-original-title="'
           | append: site.data.locales[lang].post.button.copy_code.succeed
           | append: '"><i class="far fa-clone"></i></button></div>'
           | append: '<div class="highlight"><code>'