diff --git a/htdocs/core/lib/pdf.lib.php b/htdocs/core/lib/pdf.lib.php
index 873b375496e..5121506087c 100644
--- a/htdocs/core/lib/pdf.lib.php
+++ b/htdocs/core/lib/pdf.lib.php
@@ -1363,6 +1363,7 @@ function pdf_getlinedesc($object, $i, $outputlangs, $hideref = 0, $hidedesc = 0,
 		// Description short of product line
 		$libelleproduitservice = $label;
 		if (!empty($libelleproduitservice) && !empty($conf->global->PDF_BOLD_PRODUCT_LABEL)) {
+			// This part of code is bugged. It introduces a HTML tag making the label a html string but without converting \n into br if it was a full text non html string before.
 			$libelleproduitservice = '<b>'.$libelleproduitservice.'</b>';
 		}
 	}