diff --git a/Resources/js/bc-bootstrap-collection.js b/Resources/js/bc-bootstrap-collection.js
index 4357522..ab8c98d 100644
--- a/Resources/js/bc-bootstrap-collection.js
+++ b/Resources/js/bc-bootstrap-collection.js
@@ -32,7 +32,7 @@
 
         e && e.preventDefault();
 
-        var collection = $('#'+selector),
+        var collection = $this.closest('form').find('#'+selector),
             list = collection.find('> ul'),
             count = list.find('> li').length
         ;