diff --git a/modules-targeted-contrib.conf b/modules-targeted-contrib.conf
index 18a4bf1..aff8165 100644
--- a/modules-targeted-contrib.conf
+++ b/modules-targeted-contrib.conf
@@ -2523,3 +2523,10 @@ rolekit = module
 # targetd policy
 #
 targetd = module
+
+# Layer: contrib
+# Module: hsqldb
+#
+# Hsqldb is transactional database engine with in-memory and disk-based tables, supporting embedded and server modes.
+#
+hsqldb = module