diff --git a/cl/lib/elasticsearch_utils.py b/cl/lib/elasticsearch_utils.py
index bad8e9f177..c6c99c9d81 100644
--- a/cl/lib/elasticsearch_utils.py
+++ b/cl/lib/elasticsearch_utils.py
@@ -1484,6 +1484,8 @@ def build_full_join_es_queries(
         parent_filters = build_join_es_filters(cd)
         # If parent filters, extend into child_filters.
         if parent_filters:
+            # Removes the party and attorney filter if they were provided because
+            # those fields are not part of the RECAPDocument mapping.
             child_filters.extend(
                 [
                     query