diff --git a/document_page_reference/i18n/document_page_reference.pot b/document_page_reference/i18n/document_page_reference.pot
index d751a77c..16a3fce5 100644
--- a/document_page_reference/i18n/document_page_reference.pot
+++ b/document_page_reference/i18n/document_page_reference.pot
@@ -13,6 +13,12 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: \n"
 
+#. module: document_page_reference
+#: code:addons/document_page_reference/models/document_page.py:64
+#, python-format
+msgid "%s_copy"
+msgstr ""
+
 #. module: document_page_reference
 #: model:ir.model.fields,field_description:document_page_reference.field_document_page__content_parsed
 msgid "Content Parsed"
@@ -29,13 +35,13 @@ msgid "Reference"
 msgstr ""
 
 #. module: document_page_reference
-#: code:addons/document_page_reference/models/document_page.py:68
+#: code:addons/document_page_reference/models/document_page.py:78
 #, python-format
 msgid "Reference is not valid"
 msgstr ""
 
 #. module: document_page_reference
-#: code:addons/document_page_reference/models/document_page.py:73
+#: code:addons/document_page_reference/models/document_page.py:83
 #, python-format
 msgid "Reference must be unique"
 msgstr ""