diff --git a/js/script_4.8.js b/js/script_4.8.js
index 155421a..84e56a6 100644
--- a/js/script_4.8.js
+++ b/js/script_4.8.js
@@ -366,6 +366,7 @@ $(document).ready(function() {
 			refreshSortables();
 			if (claListLen == 1) {
 				$("#unitaRicerca").prop('disabled', false);
+				$('#collapseCla'+topClause).attr("class","collapse show");	
 			}
 		});
 	});