diff --git a/licenses/public-domain.txt b/licenses/public-domain.txt
index 6f29228..14ebcad 100644
--- a/licenses/public-domain.txt
+++ b/licenses/public-domain.txt
@@ -3,6 +3,7 @@ layout: license
 permalink: /licenses/public-domain/
 class: license-types
 title: Public Domain (Unlicense)
+filename: UNLICENSE
 
 description: Because copyright is automatic in most countries, the Unlicense is a template to waive interest in software you've written and dedicate it to the public domain. Use the Unlicense to opt out of copyright entirely. It also includes the no-warranty statement from the MIT/X11 license.