diff --git a/js/script_4.8.js b/js/script_4.8.js
index 981823f..155421a 100644
--- a/js/script_4.8.js
+++ b/js/script_4.8.js
@@ -364,7 +364,7 @@ $(document).ready(function() {
 			delete window["context" + claIdNum];
 			refreshClaList(claIdNum);
 			refreshSortables();
-			if (claIdNum == 1) {
+			if (claListLen == 1) {
 				$("#unitaRicerca").prop('disabled', false);
 			}
 		});