diff --git a/opensearch-search-quality-evaluation-plugin/src/main/java/org/opensearch/eval/judgments/opensearch/OpenSearchHelper.java b/opensearch-search-quality-evaluation-plugin/src/main/java/org/opensearch/eval/judgments/opensearch/OpenSearchHelper.java
index 8832c72..9d257b1 100644
--- a/opensearch-search-quality-evaluation-plugin/src/main/java/org/opensearch/eval/judgments/opensearch/OpenSearchHelper.java
+++ b/opensearch-search-quality-evaluation-plugin/src/main/java/org/opensearch/eval/judgments/opensearch/OpenSearchHelper.java
@@ -276,6 +276,7 @@ public void indexClickthroughRates(final Map<String, Set<ClickthroughRate>> clic
                     jsonMap.put("clicks", clickthroughRate.getClicks());
                     jsonMap.put("events", clickthroughRate.getEvents());
                     jsonMap.put("ctr", clickthroughRate.getClickthroughRate());
+                    jsonMap.put("object_id", clickthroughRate.getObjectId());
 
                     final IndexRequest indexRequest = new IndexRequest(INDEX_QUERY_DOC_CTR).id(UUID.randomUUID().toString()).source(jsonMap);