diff --git a/odoo-bringout-oca-ocb-base/odoo/tools/pdf/_pypdf2_2.py b/odoo-bringout-oca-ocb-base/odoo/tools/pdf/_pypdf2_2.py
index 7fc1bcb0..8fcb2770 100644
--- a/odoo-bringout-oca-ocb-base/odoo/tools/pdf/_pypdf2_2.py
+++ b/odoo-bringout-oca-ocb-base/odoo/tools/pdf/_pypdf2_2.py
@@ -17,7 +17,3 @@ class PdfWriter(_Writer):
 
     def _addObject(self, *args, **kwargs):
         return self._add_object(*args, **kwargs)
-
-    def cloneReaderDocumentRoot(self, reader):
-        # PyPDF2 3.0 renamed camelCase to snake_case and removed the old names
-        return self.clone_reader_document_root(reader)