diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 232aa6b5789..f7eb6a67263 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -123,6 +123,11 @@ abstract class CommonObject
 	 */
 	public $linkedObjects;
 
+	/**
+	 * @var boolean		is linkedObjects full loaded. Loaded by ->fetchObjectLinked
+	 */
+	public $linkedObjectsFullLoaded = false;
+
 	/**
 	 * @var Object      To store a cloned copy of object before to edit it and keep track of old properties
 	 */
@@ -3834,6 +3839,9 @@ abstract class CommonObject
 		} else {
 			$sql .= "(fk_source = ".((int) $sourceid)." AND sourcetype = '".$this->db->escape($sourcetype)."')";
 			$sql .= " ".$clause." (fk_target = ".((int) $targetid)." AND targettype = '".$this->db->escape($targettype)."')";
+			if ($sourceid == $this->id && $sourcetype == $this->element && $targetid == $this->id && $targettype == $this->element && $clause == 'OR') {
+				$this->linkedObjectsFullLoaded = true;
+			}
 		}
 		$sql .= " ORDER BY ".$orderby;
 
diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index ea8c6c2ce23..b273f93b69f 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -2282,7 +2282,9 @@ function pdf_getLinkedObjects(&$object, $outputlangs)
 
 	$linkedobjects = array();
 
-	$object->fetchObjectLinked();
+	if (empty($object->linkedObjectsFullLoaded)) {
+		$object->fetchObjectLinked();
+	}
 
 	foreach ($object->linkedObjects as $objecttype => $objects) {
 		if ($objecttype == 'facture') {