diff --git a/net-libs/liblockfile/metadata.xml b/net-libs/liblockfile/metadata.xml
new file mode 100644
--- /dev/null
+++ b/net-libs/liblockfile/metadata.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+<herd>net-mail</herd>
+</pkgmetadata>