diff --git a/dev-libs/xbyak/metadata.xml b/dev-libs/xbyak/metadata.xml
index 1b142c23f268a..afe279a31d302 100644
--- a/dev-libs/xbyak/metadata.xml
+++ b/dev-libs/xbyak/metadata.xml
@@ -1,7 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-<maintainer type="person">
-<email>zx2c4@gentoo.org</email>
-</maintainer>
+	<maintainer type="person">
+		<email>zx2c4@gentoo.org</email>
+	</maintainer>
+	<upstream>
+		<remote-id type="github">herumi/xbyak</remote-id>
+	</upstream>
 </pkgmetadata>