diff --git a/product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.xml b/product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.xml
index 6963b18709058f8ec156022261f3b34d15f29ccf..5c234d8734eca9697feab7d3ffd51fc97a3e5b26 100644
--- a/product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.xml
+++ b/product/ERP5/bootstrap/erp5_xhtml_style/SkinTemplateItem/portal_skins/erp5_xhtml_style/template_erp5_xhtml_style.xml
@@ -129,7 +129,7 @@ IDEAS:\n
                   </tal:block>\n
                 </div>\n
                 <p class="clear"></p>\n
-                <tal:block tal:condition="preferred_html_style_acknowledgeable_message">\n
+                <tal:block tal:condition="preferred_html_style_acknowledgeable_message | nothing">\n
                   <div id="acknowledgeable_message_render">\n
                     <div tal:content="structure here/acknowledgeable_message_render"/>\n
                   </div>\n
diff --git a/product/ERP5/bootstrap/erp5_xhtml_style/bt/revision b/product/ERP5/bootstrap/erp5_xhtml_style/bt/revision
index 5d5ad96f9fa59e86a02bf299511221da15f5511a..4f1a32f19046cfd3b06fa1a3728d48f68b0a8ac7 100644
--- a/product/ERP5/bootstrap/erp5_xhtml_style/bt/revision
+++ b/product/ERP5/bootstrap/erp5_xhtml_style/bt/revision
@@ -1 +1 @@
-764
\ No newline at end of file
+765
\ No newline at end of file