diff --git a/src/collective/contact/core/content/directory.py b/src/collective/contact/core/content/directory.py
index 105c73d..645983d 100644
--- a/src/collective/contact/core/content/directory.py
+++ b/src/collective/contact/core/content/directory.py
@@ -52,7 +52,7 @@ class Directory(Container):
     """Directory content type"""
     implements(IDirectory)
 
-    meta_type = 'directory'
+    # meta_type = 'directory'
 
 
 class DirectorySchemaPolicy(grok.GlobalUtility,
diff --git a/src/collective/contact/core/content/held_position.py b/src/collective/contact/core/content/held_position.py
index 0f96e99..65375db 100644
--- a/src/collective/contact/core/content/held_position.py
+++ b/src/collective/contact/core/content/held_position.py
@@ -89,7 +89,7 @@ class HeldPosition(Container):
 
     implements(IHeldPosition)
 
-    meta_type = 'held_position'
+    # meta_type = 'held_position'
     use_parent_address = NO_VALUE
     parent_address = NO_VALUE
 
diff --git a/src/collective/contact/core/content/person.py b/src/collective/contact/core/content/person.py
index e16a224..d4f306d 100644
--- a/src/collective/contact/core/content/person.py
+++ b/src/collective/contact/core/content/person.py
@@ -66,7 +66,7 @@ class Person(Container):
 
     implements(IPerson)
 
-    meta_type = 'person'
+    # meta_type = 'person'
     is_created = False
     # plone.dexterity.content.Content.__getattr__ retrieve the field.default
     # so step 1.2.1 in z3c.form.widget.py returns something instead of NO_VALUE
diff --git a/src/collective/contact/core/content/position.py b/src/collective/contact/core/content/position.py
index ae93eef..4e4f3db 100644
--- a/src/collective/contact/core/content/position.py
+++ b/src/collective/contact/core/content/position.py
@@ -56,7 +56,7 @@ class Position(Container):
 
     implements(IPosition)
 
-    meta_type = 'position'
+    # meta_type = 'position'
     use_parent_address = NO_VALUE
     parent_address = NO_VALUE