diff --git a/lib/conf.d/bases_structure.xml b/lib/conf.d/bases_structure.xml
index 20a6dd1952..319e786966 100644
--- a/lib/conf.d/bases_structure.xml
+++ b/lib/conf.d/bases_structure.xml
@@ -2519,10 +2519,10 @@
           </field>
           <field>
             <name>action</name>
-            <type>enum('push','add','validate','edit','collection','status','print','substit','publish','download','mail','ftp','delete','collection_to','')</type>
+            <type>enum('push','add','validate','edit','collection','status','print','substit','publish','download','mail','ftp','delete','collection_from','-')</type>
             <null></null>
             <extra></extra>
-            <default></default>
+            <default>-</default>
             <comment></comment>
             <collation>ascii_bin</collation>
           </field>