diff --git a/dev-ruby/em-websocket/metadata.xml b/dev-ruby/em-websocket/metadata.xml
index b534f7a3d7188..a5bbd0d1389c4 100644
--- a/dev-ruby/em-websocket/metadata.xml
+++ b/dev-ruby/em-websocket/metadata.xml
@@ -6,6 +6,8 @@
     <name>Gentoo Ruby Project</name>
   </maintainer>
   <upstream>
+    <doc>https://www.rubydoc.info/gems/em-websocket/</doc>
     <remote-id type="github">igrigorik/em-websocket</remote-id>
+    <remote-id type="rubygems">em-websocket</remote-id>
   </upstream>
 </pkgmetadata>