diff --git a/net-mail/hydroxide/metadata.xml b/net-mail/hydroxide/metadata.xml
index def2ea81fe..e1833c6396 100644
--- a/net-mail/hydroxide/metadata.xml
+++ b/net-mail/hydroxide/metadata.xml
@@ -1,12 +1,13 @@
 <?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>leohdz172@proton.me</email>
-		<name>Leonardo Hernández Hernández</name>
-	</maintainer>
-	<upstream>
-		<bugs-to>https://github.com/emersion/hydroxide/issues</bugs-to>
-		<doc>https://github.com/emersion/hydroxide/blob/master/README.md</doc>
-	</upstream>
+  <maintainer type="person">
+    <email>leohdz172@proton.me</email>
+    <name>Leonardo Hernández Hernández</name>
+  </maintainer>
+  <upstream>
+    <bugs-to>https://github.com/emersion/hydroxide/issues</bugs-to>
+    <doc>https://github.com/emersion/hydroxide/blob/master/README.md</doc>
+    <remote-id type="github">emersion/hydroxide</remote-id>
+  </upstream>
 </pkgmetadata>