diff --git a/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/PDF_viewHTMLPreviewAsThumbnailList/listbox.xml b/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/PDF_viewHTMLPreviewAsThumbnailList/listbox.xml
index 393dda313b7ee54c19177e82e94643a0180b958f..9bfda20af5d029761db695096d54b784d706c9d8 100644
--- a/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/PDF_viewHTMLPreviewAsThumbnailList/listbox.xml
+++ b/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/PDF_viewHTMLPreviewAsThumbnailList/listbox.xml
@@ -318,6 +318,10 @@
                     <key> <string>alternate_name</string> </key>
                     <value> <string></string> </value>
                 </item>
+                <item>
+                    <key> <string>anchor</string> </key>
+                    <value> <int>0</int> </value>
+                </item>
                 <item>
                     <key> <string>columns</string> </key>
                     <value>
@@ -337,7 +341,7 @@
                 </item>
                 <item>
                     <key> <string>css_class</string> </key>
-                    <value> <string></string> </value>
+                    <value> <string>hidden_label</string> </value>
                 </item>
                 <item>
                     <key> <string>default_params</string> </key>
diff --git a/bt5/erp5_dms/bt/revision b/bt5/erp5_dms/bt/revision
index 7bfae052e1287ea49b5903e009ec8a5539997f8f..1b003ab28f1c6ab7c473de7866eb02c53161b554 100644
--- a/bt5/erp5_dms/bt/revision
+++ b/bt5/erp5_dms/bt/revision
@@ -1 +1 @@
-905
\ No newline at end of file
+906
\ No newline at end of file