diff --git a/app-misc/anki-bin/metadata.xml b/app-misc/anki-bin/metadata.xml
index a3cf6e209a..ac2ebcfc82 100644
--- a/app-misc/anki-bin/metadata.xml
+++ b/app-misc/anki-bin/metadata.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM 'http://www.gentoo.org/dtd/metadata.dtd'>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
 	<maintainer type="person">
 		<email>1over137@anche.no</email>