diff --git a/indexer-core/src/main/java/org/opengroup/osdu/indexer/service/IndexerServiceImpl.java b/indexer-core/src/main/java/org/opengroup/osdu/indexer/service/IndexerServiceImpl.java
index 71f03fb3cb3abf64d9876413f3627bbd2d15a5ed..06f58bb31d57fc204f2caf4c8a53f1b70257193c 100644
--- a/indexer-core/src/main/java/org/opengroup/osdu/indexer/service/IndexerServiceImpl.java
+++ b/indexer-core/src/main/java/org/opengroup/osdu/indexer/service/IndexerServiceImpl.java
@@ -394,8 +394,7 @@ public class IndexerServiceImpl implements IndexerService {
             document.setAcl(storageRecord.getAcl());
             document.setLegal(storageRecord.getLegal());
             if (storageRecord.getTags() == null) {
-                Map<String, String> constantTags = new HashMap<>();
-                storageRecord.setTags(constantTags);
+                storageRecord.setTags(new HashMap<>());
             }
             storageRecord.getTags().put(IndexerServiceImpl.NORMALIZATION_KIND_TAG_ATTRIBUTE_NAME, String.format("%s:%s:%s:%s", authority, source, type, versionParts[0]));
             document.setTags(storageRecord.getTags());