diff --git a/dev-lang/gnuprologjava/metadata.xml b/dev-lang/gnuprologjava/metadata.xml
index 7b573c7732444..7339a2f9106ec 100644
--- a/dev-lang/gnuprologjava/metadata.xml
+++ b/dev-lang/gnuprologjava/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>prolog@gentoo.org</email>
-	<name>Prolog</name>
-</maintainer>
+  <maintainer type="project">
+    <email>prolog@gentoo.org</email>
+    <name>Prolog</name>
+  </maintainer>
+  <upstream>
+    <remote-id type="savannah">gnuprologjava</remote-id>
+  </upstream>
 </pkgmetadata>