diff --git a/htdocs/core/class/html.formfile.class.php b/htdocs/core/class/html.formfile.class.php
index 347b22400bd..ec9dff5f1a3 100644
--- a/htdocs/core/class/html.formfile.class.php
+++ b/htdocs/core/class/html.formfile.class.php
@@ -1508,10 +1508,10 @@ class FormFile
 		if (!empty($addfilterfields))
 		{
 			print '<tr class="liste_titre nodrag nodrop">';
-			print '<td></td>';
-			print '<td><input type="text" class="maxwidth100onsmartphone" name="search_doc_ref" value="'.dol_escape_htmltag($search_doc_ref).'"></td>';
-			print '<td></td>';
-			print '<td></td>';
+			print '<td class="liste_titre"></td>';
+			print '<td class="liste_titre"><input type="text" class="maxwidth100onsmartphone" name="search_doc_ref" value="'.dol_escape_htmltag($search_doc_ref).'"></td>';
+			print '<td class="liste_titre"></td>';
+			print '<td class="liste_titre"></td>';
 			// Action column
 			print '<td class="liste_titre center">';
 			$searchpicto = $form->showFilterButtons();