diff --git a/htdocs/comm/propal/class/api_proposals.class.php b/htdocs/comm/propal/class/api_proposals.class.php
index d58af90d8da..39857d88365 100644
--- a/htdocs/comm/propal/class/api_proposals.class.php
+++ b/htdocs/comm/propal/class/api_proposals.class.php
@@ -78,7 +78,7 @@ class Proposals extends DolibarrApi
 		}
 
 		// Add external contacts ids
-                $this->propal->contacts_ids = $this->propal->liste_contact(-1,'external',1);
+		$this->propal->contacts_ids = $this->propal->liste_contact(-1,'external',1);
 
 		$this->propal->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->propal);
@@ -160,7 +160,7 @@ class Proposals extends DolibarrApi
 				$proposal_static = new Propal($db);
 				if($proposal_static->fetch($obj->rowid)) {
 					// Add external contacts ids
-                			$proposal_static->contacts_ids = $proposal_static->liste_contact(-1,'external',1);
+					$proposal_static->contacts_ids = $proposal_static->liste_contact(-1,'external',1);
 					$obj_ret[] = $this->_cleanObjectDatas($proposal_static);
 				}
 				$i++;
diff --git a/htdocs/commande/class/api_orders.class.php b/htdocs/commande/class/api_orders.class.php
index 5f10168d33b..e52da47e11b 100644
--- a/htdocs/commande/class/api_orders.class.php
+++ b/htdocs/commande/class/api_orders.class.php
@@ -76,11 +76,11 @@ class Orders extends DolibarrApi
 			throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
-	// Add external contacts ids
-        $this->commande->contacts_ids = $this->commande->liste_contact(-1,'external',1);
-        $this->commande->fetchObjectLinked();
+		// Add external contacts ids
+		$this->commande->contacts_ids = $this->commande->liste_contact(-1,'external',1);
+		$this->commande->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->commande);
-    }
+	}
 
 
 
@@ -161,7 +161,7 @@ class Orders extends DolibarrApi
                 $obj = $db->fetch_object($result);
                 $commande_static = new Commande($db);
                 if($commande_static->fetch($obj->rowid)) {
- 		    // Add external contacts ids
+                    // Add external contacts ids
                     $commande_static->contacts_ids = $commande_static->liste_contact(-1,'external',1);
                     $obj_ret[] = $this->_cleanObjectDatas($commande_static);
                 }
diff --git a/htdocs/compta/facture/class/api_invoices.class.php b/htdocs/compta/facture/class/api_invoices.class.php
index 10cfd6bff36..1b985021cc8 100644
--- a/htdocs/compta/facture/class/api_invoices.class.php
+++ b/htdocs/compta/facture/class/api_invoices.class.php
@@ -81,8 +81,9 @@ class Invoices extends DolibarrApi
 			throw new RestException(401, 'Access not allowed for login '.DolibarrApiAccess::$user->login);
 		}
 
-                // Add external contacts ids
-                $this->invoice->contacts_ids = $this->invoice->liste_contact(-1,'external',1);
+		// Add external contacts ids
+		$this->invoice->contacts_ids = $this->invoice->liste_contact(-1,'external',1);
+
 		$this->invoice->fetchObjectLinked();
 		return $this->_cleanObjectDatas($this->invoice);
 	}
@@ -178,8 +179,8 @@ class Invoices extends DolibarrApi
                 	$invoice_static->totaldeposits = $invoice_static->getSumDepositsUsed();
                 	$invoice_static->remaintopay = price2num($invoice_static->total_ttc - $invoice_static->totalpaid - $invoice_static->totalcreditnotes - $invoice_static->totaldeposits, 'MT');
 
-			// Add external contacts ids
-                        $invoice_static->contacts_ids = $invoice_static->liste_contact(-1,'external',1);
+					// Add external contacts ids
+					$invoice_static->contacts_ids = $invoice_static->liste_contact(-1,'external',1);
 
                 	$obj_ret[] = $this->_cleanObjectDatas($invoice_static);
                 }