diff --git a/product/ERP5/Document/PDFDocument.py b/product/ERP5/Document/PDFDocument.py
index 6c915d467dd9ee5ac85208aa4797f4df06091fed..c89a46d2748f8b8504a436245265d45b28685fc3 100644
--- a/product/ERP5/Document/PDFDocument.py
+++ b/product/ERP5/Document/PDFDocument.py
@@ -65,10 +65,6 @@ class PDFDocument(Image, CachedConvertableMixin):
                     , PropertySheet.Periodicity
                     )
 
-  searchable_property_list = ('asText', 'title', 'description', 'id', 'reference',
-                              'version', 'short_title',
-                              'subject', 'source_reference', 'source_project_title',)
-
   # Conversion API
   security.declareProtected(Permissions.AccessContentsInformation, 'convert')
   def convert(self, format, **kw):