diff --git a/htdocs/api/class/api.class.php b/htdocs/api/class/api.class.php
index 554edbb892e..5987ddfea66 100644
--- a/htdocs/api/class/api.class.php
+++ b/htdocs/api/class/api.class.php
@@ -104,7 +104,7 @@ class DolibarrApi
 		unset($object->restrictiononfksoc);
 		unset($object->table_rowid);
 
-        // Remove linkedObjects. We should already have linkedObjectIds that avoid huge responses
+        // Remove linkedObjects. We should already have linkedObjectsIds that avoid huge responses
         unset($object->linkedObjects);
 
         unset($object->fields);
diff --git a/htdocs/core/triggers/interface_99_modZapier_ZapierTriggers.class.php b/htdocs/core/triggers/interface_99_modZapier_ZapierTriggers.class.php
index d028cf0f59f..95595863cb3 100644
--- a/htdocs/core/triggers/interface_99_modZapier_ZapierTriggers.class.php
+++ b/htdocs/core/triggers/interface_99_modZapier_ZapierTriggers.class.php
@@ -376,7 +376,7 @@ function cleanObjectDatas($toclean)
     // Remove $db object property for object
     unset($toclean->db);
 
-    // Remove linkedObjects. We should already have linkedObjectIds that avoid huge responses
+    // Remove linkedObjects. We should already have linkedObjectsIds that avoid huge responses
     unset($toclean->linkedObjects);
 
     unset($toclean->lines); // should be ->lines
diff --git a/htdocs/delivery/class/delivery.class.php b/htdocs/delivery/class/delivery.class.php
index 223aafee62e..4d498d70357 100644
--- a/htdocs/delivery/class/delivery.class.php
+++ b/htdocs/delivery/class/delivery.class.php
@@ -951,11 +951,11 @@ class Delivery extends CommonObject
 
 		// Get the linked object
 		$this->fetchObjectLinked('', '', $this->id, $this->element);
-		//var_dump($this->linkedObjectIds);
+		//var_dump($this->linkedObjectsIds);
 		// Get the product ref and qty in source
 		$sqlSourceLine = "SELECT st.rowid, st.description, st.qty";
 		$sqlSourceLine .= ", p.ref, p.label";
-		$sqlSourceLine .= " FROM ".MAIN_DB_PREFIX.$this->linkedObjectIds[0]['type']."det as st";
+		$sqlSourceLine .= " FROM ".MAIN_DB_PREFIX.$this->linkedObjectsIds[0]['type']."det as st";
 		$sqlSourceLine .= " LEFT JOIN ".MAIN_DB_PREFIX."product as p ON st.fk_product = p.rowid";
 		$sqlSourceLine .= " WHERE fk_".$this->linked_object[0]['type']." = ".$this->linked_object[0]['linkid'];