diff --git a/product/ERP5/PropertySheet/GeographicAddress.py b/product/ERP5/PropertySheet/GeographicAddress.py
index b6a5b7a6302fdeae87efe647ae3fc8f0406aa115..39a45d4e54f40c2792e2a6df6e09a338e1d2f40f 100644
--- a/product/ERP5/PropertySheet/GeographicAddress.py
+++ b/product/ERP5/PropertySheet/GeographicAddress.py
@@ -44,6 +44,10 @@ class GeographicAddress:
             'description' : 'Zip code.',
             'type'        : 'string',
             'mode'        : 'w' },
+        {   'id'          : 'prefecture',
+            'description' : 'Prefecture.',
+            'type'        : 'string',
+            'mode'        : 'w' },
     )
 
     _categories = ( 'region', )