diff --git a/extensions/cql/standard/schema/cql.yml b/extensions/cql/standard/schema/cql.yml
index 2030c7e4..3f0a52d3 100644
--- a/extensions/cql/standard/schema/cql.yml
+++ b/extensions/cql/standard/schema/cql.yml
@@ -2,7 +2,7 @@
 openapi: 3.0.3
 info:
   title: Schema of Common Query Language (CQL)
-  description: 'For use in OpenAPI 3.0 documents'
+  description: 'For use in OpenAPI 3.0 documents. TODO: This document is outdated and needs to be synchronized with cql.json.'
   version: '1.0.0-draft.1'
 paths: {}
 components: