diff --git a/htdocs/asset/class/asset.class.php b/htdocs/asset/class/asset.class.php
index 5381b718d6b..2180911d771 100644
--- a/htdocs/asset/class/asset.class.php
+++ b/htdocs/asset/class/asset.class.php
@@ -154,7 +154,7 @@ class Asset extends CommonObject
 	public $import_key;
 	public $model_pdf;
 	public $status;
-    public $supplier_invoice_id;
+	public $supplier_invoice_id;
 
 	// /**
 	//  * @var string    Field with ID of parent key if this object has a parent