diff --git a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
index f3cffecdd9c..62213127951 100644
--- a/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
+++ b/htdocs/core/modules/expedition/doc/pdf_rouget.modules.php
@@ -52,6 +52,11 @@ class pdf_rouget extends ModelePdfExpedition
 	 */
 	public $description;
 
+	/**
+	 * @var int     Save the name of generated file as the main doc when generating a doc with this template
+	 */
+	public $update_main_doc_field;
+
 	/**
 	 * @var string document type
 	 */
@@ -123,6 +128,7 @@ class pdf_rouget extends ModelePdfExpedition
 		$this->db = $db;
 		$this->name = "rouget";
 		$this->description = $langs->trans("DocumentModelStandardPDF");
+		$this->update_main_doc_field = 1; // Save the name of generated file as the main doc when generating a doc with this template
 
 		$this->type = 'pdf';
 		$formatarray = pdf_getFormat();