diff --git a/htdocs/compta/facture/class/api_invoices.class.php b/htdocs/compta/facture/class/api_invoices.class.php
index aac7330711f..6c55e24f788 100644
--- a/htdocs/compta/facture/class/api_invoices.class.php
+++ b/htdocs/compta/facture/class/api_invoices.class.php
@@ -75,6 +75,7 @@ class Invoices extends DolibarrApi
 			throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
+		$this->invoice->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->invoice);
     }
 
diff --git a/htdocs/fourn/class/api_supplier_invoices.class.php b/htdocs/fourn/class/api_supplier_invoices.class.php
index 26ae936d5a0..a833546f83d 100644
--- a/htdocs/fourn/class/api_supplier_invoices.class.php
+++ b/htdocs/fourn/class/api_supplier_invoices.class.php
@@ -76,6 +76,7 @@ class SupplierInvoices extends DolibarrApi
 			throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
+		$this->invoice->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->invoice);
     }
 
diff --git a/htdocs/fourn/class/api_supplier_orders.class.php b/htdocs/fourn/class/api_supplier_orders.class.php
index 2695727c3ee..91eab23e3a8 100644
--- a/htdocs/fourn/class/api_supplier_orders.class.php
+++ b/htdocs/fourn/class/api_supplier_orders.class.php
@@ -76,6 +76,7 @@ class SupplierOrders extends DolibarrApi
 			throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
+		$this->order->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->order);
     }