diff --git a/server/books/admin.py b/server/books/admin.py
index 194e4782..ee60f6d6 100644
--- a/server/books/admin.py
+++ b/server/books/admin.py
@@ -29,6 +29,6 @@ class ChapterAdmin(admin.ModelAdmin):
 
 
 @admin.register(ContentBlock)
-class ChapterAdmin(admin.ModelAdmin):
+class ContentBlockAdmin(admin.ModelAdmin):
     list_display = ('title', 'slug')
-    list_filter = (wagtail_parent_filter(Chapter, ContentBlock),)
+    list_filter = (wagtail_parent_filter(Chapter, ContentBlock), 'user_created',)