diff --git a/addons/wiki/wizard/wizard_view.xml b/addons/wiki/wizard/wizard_view.xml
index bc10f5a2ae7..59053f941bb 100644
--- a/addons/wiki/wizard/wizard_view.xml
+++ b/addons/wiki/wizard/wizard_view.xml
@@ -8,7 +8,7 @@
             <field name="arch" type="xml">
                 <form string="History Differance">
                     <separator string="Wiki Differance" colspan="4"/>
-                    <field name="diff" widget="html_tag" nolabel="1" colspan="4"/>
+                    <field name="diff" widget="text_html" nolabel="1" colspan="4"/>
                 </form>
             </field>
         </record>