diff --git a/dev-cpp/cairomm/metadata.xml b/dev-cpp/cairomm/metadata.xml
index 7b343b06be8a9..04715ff9071fd 100644
--- a/dev-cpp/cairomm/metadata.xml
+++ b/dev-cpp/cairomm/metadata.xml
@@ -1,8 +1,11 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-<maintainer type="project">
-	<email>gnome@gentoo.org</email>
-	<name>Gentoo GNOME Desktop</name>
-</maintainer>
+  <maintainer type="project">
+    <email>gnome@gentoo.org</email>
+    <name>Gentoo GNOME Desktop</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="freedesktop-gitlab">cairo/cairomm</remote-id>
+  </upstream>
 </pkgmetadata>