diff --git a/htdocs/accountancy/bookkeeping/card.php b/htdocs/accountancy/bookkeeping/card.php
index 8a66acee0d9..5b645796a32 100644
--- a/htdocs/accountancy/bookkeeping/card.php
+++ b/htdocs/accountancy/bookkeeping/card.php
@@ -663,7 +663,7 @@ if ($action == 'create') {
 						// Also, it is not possible to use a value that is not in the list.
 						// Also, the label is not automatically filled when a value is selected.
 						if (!empty($conf->global->ACCOUNTANCY_COMBO_FOR_AUX)) {
-							print $formaccounting->select_auxaccount((GETPOSTISSET("subledger_account") ? GETPOST("subledger_account", "alpha") : $line->subledger_account), 'subledger_account', 1);
+							print $formaccounting->select_auxaccount((GETPOSTISSET("subledger_account") ? GETPOST("subledger_account", "alpha") : $line->subledger_account), 'subledger_account', 1, 'maxwidth250', '', 'subledger_label');
 						} else {
 							print '<input type="text" class="maxwidth150" name="subledger_account" value="'.(GETPOSTISSET("subledger_account") ? GETPOST("subledger_account", "alpha") : $line->subledger_account).'" placeholder="'.dol_escape_htmltag($langs->trans("SubledgerAccount")).'">';
 						}
@@ -746,7 +746,7 @@ if ($action == 'create') {
 						// Also, it is not possible to use a value that is not in the list.
 						// Also, the label is not automatically filled when a value is selected.
 						if (!empty($conf->global->ACCOUNTANCY_COMBO_FOR_AUX)) {
-							print $formaccounting->select_auxaccount('', 'subledger_account', 1);
+							print $formaccounting->select_auxaccount('', 'subledger_account', 1, 'maxwidth250', '', 'subledger_label');
 						} else {
 							print '<input type="text" class="maxwidth150" name="subledger_account" value="" placeholder="' . dol_escape_htmltag($langs->trans("SubledgerAccount")) . '">';
 						}
diff --git a/htdocs/core/class/html.formaccounting.class.php b/htdocs/core/class/html.formaccounting.class.php
index 2e1b9661f58..9234fa057bd 100644
--- a/htdocs/core/class/html.formaccounting.class.php
+++ b/htdocs/core/class/html.formaccounting.class.php
@@ -441,7 +441,7 @@ class FormAccounting extends Form
 	 * @param string   		$usecache       Key to use to store result into a cache. Next call with same key will reuse the cache.
 	 * @return string       	   			String with HTML select
 	 */
-	public function select_auxaccount($selectid, $htmlname = 'account_num_aux', $showempty = 0, $morecss = 'maxwidth250', $usecache = '')
+	public function select_auxaccount($selectid, $htmlname = 'account_num_aux', $showempty = 0, $morecss = 'maxwidth250', $usecache = '', $labelhtmlname = '')
 	{
 		// phpcs:enable
 
@@ -505,6 +505,19 @@ class FormAccounting extends Form
 
 		// Build select
 		$out .= Form::selectarray($htmlname, $aux_account, $selectid, ($showempty ? (is_numeric($showempty) ? 1 : $showempty): 0), 0, 0, '', 0, 0, 0, '', $morecss, 1);
+		//automatic filling if we give the name of the subledger_label input
+		if (!empty($conf->use_javascript_ajax) && !empty($labelhtmlname)) {
+			$out .= '<script>
+				jQuery(document).ready(() => {
+					$("#'.$htmlname.'").on("select2:select", function(e) {
+						var regExp = /\(([^)]+)\)/;
+						const match = regExp.exec(e.params.data.text);
+						$(\'input[name="'.dol_escape_js($labelhtmlname).'"]\').val(match[1]);
+					});
+				});
+
+			</script>';
+		}
 
 		return $out;
 	}