diff --git a/templates/index.html b/templates/index.html
index 85ddea9..1d8fa6d 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -40,7 +40,7 @@
                                 <li>
                                     <a href="{{ url_for('post', post_id=r_post.id) }}">
                                         <div class="lists__img">
-                                            <img src="{{ r_post.thumbnail_img | default('https://via.placeholder.com/300x200', true) }}" alt="{{ r_post.title }}" />
+                                            <img src="{{ r_post.thumbnail_img | default('https://via.placeholder.com/300x200', true) }}" alt="{{ r_post.title }}" onerror="this.onerror=null; this.src='https://via.placeholder.com/300x200';" />
                                         </div>
                                         <div class="lists__desc">
                                             <p class="lists__category">{{ r_post.category }}</p>