diff --git a/django/contrib/admin/static/admin/js/actions.js b/django/contrib/admin/static/admin/js/actions.js
index 91baa1d822..8494970aa1 100644
--- a/django/contrib/admin/static/admin/js/actions.js
+++ b/django/contrib/admin/static/admin/js/actions.js
@@ -83,7 +83,7 @@
 		$(actionCheckboxes).click(function(event) {
 			if (!event) { event = window.event; }
 			var target = event.target ? event.target : event.srcElement;
-			if (lastChecked && $.data(lastChecked) != $.data(target) && event.shiftKey == true) {
+			if (lastChecked && $.data(lastChecked) != $.data(target) && event.shiftKey === true) {
 				var inrange = false;
 				$(lastChecked).attr("checked", target.checked)
 					.parent().parent().toggleClass(options.selectedClass, target.checked);