diff --git a/releng/admin.py b/releng/admin.py
index e1411b84..42755002 100644
--- a/releng/admin.py
+++ b/releng/admin.py
@@ -7,6 +7,7 @@
 class IsoAdmin(admin.ModelAdmin):
     list_display = ('name', 'created', 'active', 'removed')
     list_filter = ('active', 'created')
+    date_hierarchy = 'created'
 
 class TestAdmin(admin.ModelAdmin):
     list_display = ('user_name', 'user_email', 'created', 'ip_address',