diff --git a/dev-python/zc-lockfile/metadata.xml b/dev-python/zc-lockfile/metadata.xml
index 681f8ff378db9..ad9c502a6d7a5 100644
--- a/dev-python/zc-lockfile/metadata.xml
+++ b/dev-python/zc-lockfile/metadata.xml
@@ -10,6 +10,7 @@
 		<name>Python</name>
 	</maintainer>
 	<upstream>
+		<remote-id type="github">zopefoundation/zc.lockfile</remote-id>
 		<remote-id type="pypi">zc.lockfile</remote-id>
 	</upstream>
 </pkgmetadata>