diff --git a/view/index/post/read.html b/view/index/post/read.html
index 5da222a..7b09f1d 100644
--- a/view/index/post/read.html
+++ b/view/index/post/read.html
@@ -187,7 +187,7 @@
                                 {volist name='$post.comments' id='comment'}
                                 <div class="post-item" id="comment-{$comment.id}" data-id="{$comment.id}">
                                     <div class="left">
-                                        <img src="{$comment.user.head_img_url}" alt="">
+                                        <img src="{$comment.user.head_img_url|default=''}" alt="">
                                     </div>
                                     <div class="right">
                                         <div>{$comment.user.nickname|default=$comment.user.username}</div>