diff --git a/django/contrib/admin/static/admin/css/widgets.css b/django/contrib/admin/static/admin/css/widgets.css
index 43271f8c08..ff43f4497c 100644
--- a/django/contrib/admin/static/admin/css/widgets.css
+++ b/django/contrib/admin/static/admin/css/widgets.css
@@ -236,7 +236,7 @@
 }
 
 .stacked .selector-chooseall, .stacked .selector-clearall {
-    display: none;
+    display: block;
 }
 
 .stacked .selector-add {