diff --git a/theme/classic.html b/theme/classic.html
index df40016..17740ad 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -220,9 +220,9 @@
                     <tr id="tr0">
                         <th class="file">
                             <a onclick="sortby('a');"><!--constStr@File--></a>
-<!--ShowThumbnailsStart
+<!--ShowThumbnailsStart-->
                             &nbsp;&nbsp;&nbsp;
-                            <button onclick="showthumbnails(this);"><!--constStr@ShowThumbnails--></button>-->
+                            <button onclick="showthumbnails(this);"><!--constStr@ShowThumbnails--></button>
 <!--ShowThumbnailsEnd-->
                             &nbsp;
                             <button onclick="CopyAllDownloadUrl('.download');"><!--constStr@CopyAllDownloadUrl--></button>