diff --git a/locale/ca_ES.po b/locale/ca_ES.po
index 53250dcacf..d99992096d 100644
--- a/locale/ca_ES.po
+++ b/locale/ca_ES.po
@@ -3,12 +3,12 @@ msgid ""
 msgstr "Content-Type: text/plain; charset=utf-8\n"
 
 msgctxt "error:party.address:"
-msgid "Invalid SIRET number!"
-msgstr "El número SIRET no és vàlid"
+msgid "Invalid SIRET number \"%(siret)s\" on address \"%(address)s\""
+msgstr "Número SIREN \"%(siren)s\" de l'adreça \"%(address)s\", no és correcte."
 
 msgctxt "error:party.party:"
-msgid "Invalid SIREN number!"
-msgstr "El número SIREN no és vàlid"
+msgid "Invalid SIREN number \"%(siren)s\" on party \"%(party)s\"."
+msgstr "Número SIREN \"%(siren)s\" del tercer \"%(party)s\", no és correcte."
 
 msgctxt "field:party.address,siret:"
 msgid "SIRET"
diff --git a/setup.py b/setup.py
index 194b0cf345..c09790fcaa 100644
--- a/setup.py
+++ b/setup.py
@@ -57,6 +57,7 @@ setup(name='trytond_party_siret',
         'Intended Audience :: Manufacturing',
         'License :: OSI Approved :: GNU General Public License (GPL)',
         'Natural Language :: Bulgarian',
+        'Natural Language :: Catalan',
         'Natural Language :: Czech',
         'Natural Language :: Dutch',
         'Natural Language :: English',