diff --git a/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_property.xml b/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_property.xml
index 1bd3cbc8b27c9f2cc6eab4404159103b09cf35bd..8ecbd45a93a8cff2c0f411da40c380e9d417c4dd 100644
--- a/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_property.xml
+++ b/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_property.xml
@@ -27,7 +27,7 @@
             <key> <string>categories</string> </key>
             <value>
               <tuple>
-                <string>elementary_type/lines</string>
+                <string>elementary_type/string</string>
               </tuple>
             </value>
         </item>
@@ -49,7 +49,7 @@
         </item>
         <item>
             <key> <string>property_default</string> </key>
-            <value> <string>python: ()</string> </value>
+            <value> <string>python: None</string> </value>
         </item>
       </dictionary>
     </pickle>
diff --git a/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_title_property.xml b/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_title_property.xml
index f3d473d5aadfac5adc675dcf85d8043001ffb13c..96e138813488a8664ab201fc3cf2396c8489281f 100644
--- a/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_title_property.xml
+++ b/product/ERP5/bootstrap/erp5_property_sheets/PropertySheetTemplateItem/portal_property_sheets/EquivalenceTester/tested_property_title_property.xml
@@ -49,7 +49,7 @@
         </item>
         <item>
             <key> <string>property_default</string> </key>
-            <value> <string>python: ()</string> </value>
+            <value> <string>python: None</string> </value>
         </item>
         <item>
             <key> <string>translatable</string> </key>