diff --git a/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_viewFieldLibrary/my_parallel_list_field.xml b/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_viewFieldLibrary/my_parallel_list_field.xml
index 88e024a6ee9beba2756a1542ef21a5fc75b54140..798bf936c3862821c2b1dab5f45caa09d61a0a98 100644
--- a/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_viewFieldLibrary/my_parallel_list_field.xml
+++ b/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/Base_viewFieldLibrary/my_parallel_list_field.xml
@@ -249,7 +249,7 @@
                 </item>
                 <item>
                     <key> <string>required</string> </key>
-                    <value> <int>1</int> </value>
+                    <value> <int>0</int> </value>
                 </item>
                 <item>
                     <key> <string>size</string> </key>
diff --git a/product/ERP5/bootstrap/erp5_core/bt/revision b/product/ERP5/bootstrap/erp5_core/bt/revision
index c59f88bd09bfd71bb63aca804900313b01a5e636..b36e87eeae2c27f68d494903a5e813f5ce595186 100644
--- a/product/ERP5/bootstrap/erp5_core/bt/revision
+++ b/product/ERP5/bootstrap/erp5_core/bt/revision
@@ -1 +1 @@
-1765
\ No newline at end of file
+1766
\ No newline at end of file