diff --git a/app-text/diff-pdf/metadata.xml b/app-text/diff-pdf/metadata.xml
index f2908ee10b59c..1f67f7ee14faf 100644
--- a/app-text/diff-pdf/metadata.xml
+++ b/app-text/diff-pdf/metadata.xml
@@ -5,4 +5,8 @@
     <email>mjo@gentoo.org</email>
     <name>Michael Orlitzky</name>
   </maintainer>
+
+  <upstream>
+    <remote-id type="github">vslavik/diff-pdf</remote-id>
+  </upstream>
 </pkgmetadata>