diff --git a/product/ERP5/PropertySheet/Reference.py b/product/ERP5/PropertySheet/Reference.py
index 97cd3c117d846a23a2c231c4f68b59533f755400..10ca2e41d81e695927771c84de568a0eb65c5957 100755
--- a/product/ERP5/PropertySheet/Reference.py
+++ b/product/ERP5/PropertySheet/Reference.py
@@ -37,6 +37,7 @@ class Reference:
             'storage_id'  : 'default_reference', # Compatibility
             'description' : 'The absolute references of the document (our reference)',
             'type'        : 'string',
+            'range'       : True,
             'mode'        : 'w' },
         # WARNING: the naming is wrong because it conflicts with getSourceReference
         # which returns the reference of the source. Must be renamed as