diff --git a/htdocs/core/class/html.formcontract.class.php b/htdocs/core/class/html.formcontract.class.php
index ace00b77caa..3805b2e6706 100644
--- a/htdocs/core/class/html.formcontract.class.php
+++ b/htdocs/core/class/html.formcontract.class.php
@@ -66,6 +66,7 @@ class FormContract
 		//if ($contratListId) $sql.= " AND c.rowid IN (".$contratListId.")";
 		if ($socid == 0) $sql.= " AND (c.fk_soc = 0 OR c.fk_soc IS NULL)";
 		if ($socid > 0)  $sql.= " AND (c.fk_soc=".$socid." OR c.fk_soc IS NULL)";
+		$sql.= " ORDER BY c.ref ";
 
 		dol_syslog(get_class($this)."::select_contract", LOG_DEBUG);
 		$resql=$db->query($sql);
@@ -129,6 +130,11 @@ class FormContract
 			}
 			print '</select>';
 			$db->free($resql);
+			
+			// Make select dynamic
+			include_once DOL_DOCUMENT_ROOT . '/core/lib/ajax.lib.php';
+			print ajax_combobox($htmlname);
+			
 			return $num;
 		}
 		else