diff --git a/templates/modules/widgets/aside/comments.html b/templates/modules/widgets/aside/comments.html
index 3d86fb4a..1382cd3e 100644
--- a/templates/modules/widgets/aside/comments.html
+++ b/templates/modules/widgets/aside/comments.html
@@ -5,7 +5,7 @@
     <div class="item-headline"><i class="haofont hao-icon-comments"></i><span>最新评论</span></div>
     <div class="aside-list" id="newcomm">
         <th:block th:if="${#strings.equals(theme.config.comments.use, 'commentWidget') }"
-                  th:with="newcommentnumber = ${theme.config.sidebar.newcommentnumbernewcommentnumber > 0 ?  theme.config.sidebar.newcommentnumber : 5}">
+                  th:with="newcommentnumber = ${#conversions.convert(theme.config.sidebar.newcommentnumber, 'java.lang.Integer') >= 0 ?  theme.config.sidebar.newcommentnumber : 5}">
             <div th:each="comment,iterStat : ${commentFinder.list(null, 1, newcommentnumber)}" class="aside-list-item"
                  th:with="page = ${comment.spec.subjectRef.kind == 'Post' ? postFinder.getByName(comment.spec.subjectRef.name) :
                 comment.spec.subjectRef.kind == 'SinglePage' && not #strings.contains('photos,links,moments', comment.spec.subjectRef.name) ? singlePageFinder.getByName(comment.spec.subjectRef.name) : null},