diff --git a/htdocs/compta/facture/card.php b/htdocs/compta/facture/card.php
index b51bca8f2ac..f1419f83e45 100644
--- a/htdocs/compta/facture/card.php
+++ b/htdocs/compta/facture/card.php
@@ -4463,6 +4463,7 @@ else if ($id > 0 || ! empty($ref))
 
 			print '<tr class="liste_titre nodrag nodrop">';
 
+			// Adds a line numbering column
 			if (!empty($conf->global->MAIN_VIEW_LINE_NUMBER)) {
 				print '<td align="center" width="5">&nbsp;</td>';
 			}
@@ -4486,6 +4487,7 @@ else if ($id > 0 || ! empty($ref))
 			print '<td width="10">&nbsp;</td>';
 			print "</tr>\n";
 
+			// Adds a line numbering column
 			if (!empty($conf->global->MAIN_VIEW_LINE_NUMBER)) {
 				print '<td align="center" width="5">&nbsp;</td>';
 			}
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 475fbf2b1f0..fea6339a05f 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -3824,6 +3824,7 @@ abstract class CommonObject
 
 			print '<tr class="liste_titre nodrag nodrop">';
 
+			// Adds a line numbering column
 			if (! empty($conf->global->MAIN_VIEW_LINE_NUMBER)) print '<td class="linecolnum" align="center" width="5">&nbsp;</td>';
 
 			// Description
diff --git a/htdocs/core/tpl/objectline_create.tpl.php b/htdocs/core/tpl/objectline_create.tpl.php
index f429f7216c0..23640216cd9 100644
--- a/htdocs/core/tpl/objectline_create.tpl.php
+++ b/htdocs/core/tpl/objectline_create.tpl.php
@@ -160,6 +160,7 @@ if ($nolinesbefore) {
 ?>
 <tr class="pair nodrag nodrop nohoverpair<?php echo ($nolinesbefore || $object->element=='contrat')?'':' liste_titre_create'; ?>">
 <?php
+// Adds a line numbering column
 if (! empty($conf->global->MAIN_VIEW_LINE_NUMBER)) {
 	$coldisplay=2;
 	?>
diff --git a/htdocs/expedition/card.php b/htdocs/expedition/card.php
index a811b79b9ca..c79a56267ba 100644
--- a/htdocs/expedition/card.php
+++ b/htdocs/expedition/card.php
@@ -2010,7 +2010,7 @@ else if ($id || $ref)
         print '<div class="div-table-responsive-no-min">';
 		print '<table class="noborder" width="100%">';
 		print '<tr class="liste_titre">';
-		// #
+		// Adds a line numbering column
 		if (! empty($conf->global->MAIN_VIEW_LINE_NUMBER))
 		{
 			print '<td width="5" align="center">&nbsp;</td>';
@@ -2142,7 +2142,7 @@ else if ($id || $ref)
 		    print '<!-- origin line id = '.$lines[$i]->origin_line_id.' -->'; // id of order line
 			print '<tr class="oddeven">';
 
-			// #
+			// Adds a line numbering column
 			if (! empty($conf->global->MAIN_VIEW_LINE_NUMBER))
 			{
 				print '<td align="center">'.($i+1).'</td>';