diff --git a/src/_config.yml b/src/_config.yml
index 24553fc..3d99669 100644
--- a/src/_config.yml
+++ b/src/_config.yml
@@ -6,7 +6,7 @@ description: >-
   The Bit Goblin main website, a place for cool tech things.
 baseurl: '/'
 url: 'https://www.bitgoblin.tech'
-permalink: '/:year/:month/:day/:title'
+permalink: '/:year/:month/:day/:title:output_ext'
 links:
   bitgoblin_channel: 'https://youtube.com/BitGoblin'
   ascendings_channel: 'https://www.youtube.com/channel/UCCWlMg8oP9pz4Zlu4iZjPFw'