diff --git a/docs/de/schema.core.rst b/docs/de/schema.core.rst
index 4f159804..8e14a6b8 100644
--- a/docs/de/schema.core.rst
+++ b/docs/de/schema.core.rst
@@ -612,7 +612,7 @@ Key ``maintenance/contractors``
 '''''''''''''''''''''''''''''''
 
 -  Type: array of Contractor (see below)
--  Presence: mandatory (if ``maintenance/type`` **is** ``contract``)
+-  Presence: mandatory if ``maintenance/type`` **is** ``contract``; must not be present otherwise
 
 This key describes the entity or entities, if any, that are currently
 contracted for maintaining the software. They can be companies,
@@ -622,7 +622,7 @@ Key ``maintenance/contacts``
 ''''''''''''''''''''''''''''
 
 -  Type: List of Contacts (see below)
--  Presence: mandatory (if ``maintenance/type`` **is** ``internal`` or ``community``)
+-  Presence: mandatory if ``maintenance/type`` **is** ``internal`` or ``community``; optional otherwise
 
 One or more contacts maintaining this software.
 
diff --git a/docs/fr/schema.core.rst b/docs/fr/schema.core.rst
index 0c08b5d4..7544447e 100644
--- a/docs/fr/schema.core.rst
+++ b/docs/fr/schema.core.rst
@@ -625,7 +625,7 @@ Clé ``maintenance/contractors``
 '''''''''''''''''''''''''''''''
 
 -  Type: array of Contractor (voir ci-dessous)
--  Présence: obligatoire (si ``maintenance/type`` **est** ``contract``)
+-  Présence: obligatoire si ``maintenance/type`` **est** ``contract``; ne doit pas être présent dans les autres cas
 
 Cette clé décrit la ou les entités actuellement sous contrat pour la maintenance du logiciel. Il peut s'agir d'entreprises, d'organisations ou d'autres collectifs.
 
@@ -633,7 +633,7 @@ Clé ``maintenance/contacts``
 ''''''''''''''''''''''''''''
 
 -  Type: Liste des Contacts (voir ci-dessous)
--  Présence: obligatoire (si ``maintenance/type`` **est** ``internal`` ou ``community``)
+-  Présence: obligatoire si ``maintenance/type`` **est** ``internal`` ou ``community``; facultatif dans les autres cas
 
 Un ou plusieurs contacts assurant la maintenance du logiciel. 
 
diff --git a/docs/it/schema.core.rst b/docs/it/schema.core.rst
index 3bbf57e8..f27002e0 100644
--- a/docs/it/schema.core.rst
+++ b/docs/it/schema.core.rst
@@ -654,7 +654,7 @@ Chiave ``maintenance/contractors``
 ''''''''''''''''''''''''''''''''''
 
 -  Tipo: array di Contractor (vedi sotto)
--  Presenza: obbligatoria (se ``maintenance/type`` **è** ``contract``)
+-  Presenza: obbligatoria se ``maintenance/type`` **è** ``contract``; non deve essere presente negli altri casi
 
 Questa chiave descrive l’entità o le entità, se ce ne sono, che
 attualmente hanno un contratto di manutenzione del software. Queste
@@ -664,7 +664,7 @@ Chiave ``maintenance/contacts``
 '''''''''''''''''''''''''''''''
 
 -  Tipo: Lista di Contatti (vedi sotto)
--  Presenza: obbligatoria (se ``maintenance/type`` **è** ``internal`` oppure ``community``)
+-  Presenza: obbligatoria se ``maintenance/type`` **è** ``internal`` oppure ``community``; opzionale negli altri casi
 
 Uno o più contatti di chi sta mantenendo il software.
 
diff --git a/docs/standard/schema.core.rst b/docs/standard/schema.core.rst
index a563c36c..03463539 100644
--- a/docs/standard/schema.core.rst
+++ b/docs/standard/schema.core.rst
@@ -614,7 +614,7 @@ Key ``maintenance/contractors``
 '''''''''''''''''''''''''''''''
 
 -  Type: array of Contractor (see below)
--  Presence: mandatory (if ``maintenance/type`` **is** ``contract``)
+-  Presence: mandatory if ``maintenance/type`` **is** ``contract``; must not be present otherwise
 
 This key describes the entity or entities, if any, that are currently
 contracted for maintaining the software. They can be companies,
@@ -624,7 +624,7 @@ Key ``maintenance/contacts``
 ''''''''''''''''''''''''''''
 
 -  Type: List of Contacts (see below)
--  Presence: mandatory (if ``maintenance/type`` **is** ``internal`` or ``community``)
+-  Presence: mandatory if ``maintenance/type`` **is** ``internal`` or ``community``; optional otherwise
 
 One or more contacts maintaining this software.