diff --git a/nkdsu/mixins.py b/nkdsu/mixins.py
index 8ebc81ac..adf36efa 100644
--- a/nkdsu/mixins.py
+++ b/nkdsu/mixins.py
@@ -1,6 +1,6 @@
 import codecs
 from os import path
-from typing import Any
+from typing import Any, Optional
 
 from django.conf import settings
 from django.views.generic import TemplateView
@@ -8,7 +8,7 @@
 
 
 class MarkdownView(TemplateView):
-    template_name = 'markdown.html'
+    template_name: Optional[str] = 'markdown.html'
     filename: str
     title: str