diff --git a/product/ERP5/Document/GeographicAddress.py b/product/ERP5/Document/GeographicAddress.py
index 5748da3e04d93cf5766d0a4ee196d897e224e2ef..676fcfa2eefbd21668bab9d177c09fc19f052b98 100644
--- a/product/ERP5/Document/GeographicAddress.py
+++ b/product/ERP5/Document/GeographicAddress.py
@@ -60,6 +60,7 @@ class GeographicAddress(Coordinate, Base):
     # Declarative properties
     property_sheets = ( PropertySheet.Base
                       , PropertySheet.SimpleItem
+                      , PropertySheet.SortIndex
                       , PropertySheet.CategoryCore
                       , PropertySheet.GeographicAddress
                       )
diff --git a/product/ERP5/Document/Telephone.py b/product/ERP5/Document/Telephone.py
index 085329714fa2db54488e64afe217875d10f48687..c294e8b18337d5a6b8dea17f7d08084a7688cd7d 100644
--- a/product/ERP5/Document/Telephone.py
+++ b/product/ERP5/Document/Telephone.py
@@ -65,6 +65,7 @@ class Telephone(Coordinate, Base):
   property_sheets = ( PropertySheet.Base
                     , PropertySheet.SimpleItem
                     , PropertySheet.CategoryCore
+                    , PropertySheet.SortIndex
                     , PropertySheet.Telephone
                     )
   # This is a list of regex.