diff --git a/src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java b/src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java
index 705020d1a..b87b27ff9 100644
--- a/src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java
+++ b/src/main/java/org/springframework/data/elasticsearch/client/erhlc/RequestFactory.java
@@ -1096,8 +1096,7 @@ public UpdateRequest updateRequest(UpdateQuery query, IndexCoordinates index) {
 
 	public UpdateByQueryRequest updateByQueryRequest(UpdateQuery query, IndexCoordinates index) {
 
-		String indexName = index.getIndexName();
-		final UpdateByQueryRequest updateByQueryRequest = new UpdateByQueryRequest(indexName);
+		final UpdateByQueryRequest updateByQueryRequest = new UpdateByQueryRequest(index.getIndexNames());
 		updateByQueryRequest.setScript(getScript(query));
 
 		if (query.getAbortOnVersionConflict() != null) {
diff --git a/src/test/java/org/springframework/data/elasticsearch/client/erhlc/ElasticsearchERHLCIntegrationTests.java b/src/test/java/org/springframework/data/elasticsearch/client/erhlc/ElasticsearchERHLCIntegrationTests.java
index 473bf04bd..5594ee132 100644
--- a/src/test/java/org/springframework/data/elasticsearch/client/erhlc/ElasticsearchERHLCIntegrationTests.java
+++ b/src/test/java/org/springframework/data/elasticsearch/client/erhlc/ElasticsearchERHLCIntegrationTests.java
@@ -240,7 +240,7 @@ void shouldUseAllOptionsFromUpdateQuery() {
 		assertThat(fetchSourceContext.excludes()).containsExactlyInAnyOrder("excl");
 	}
 
-	@Test // #1446
+	@Test // #1446, #2191
 	void shouldUseAllOptionsFromUpdateByQuery() throws JSONException {
 
 		Query searchQuery = new NativeSearchQueryBuilder().withQuery(matchAllQuery()) //
@@ -270,9 +270,10 @@ void shouldUseAllOptionsFromUpdateByQuery() throws JSONException {
 				"    }" + "  }" + '}';
 
 		// when
-		UpdateByQueryRequest request = getRequestFactory().updateByQueryRequest(updateQuery, IndexCoordinates.of("index"));
+		UpdateByQueryRequest request = getRequestFactory().updateByQueryRequest(updateQuery, IndexCoordinates.of("index1", "index2"));
 
 		// then
+		assertThat(request.indices()).containsExactlyInAnyOrder("index1", "index2");
 		assertThat(request).isNotNull();
 		assertThat(request.getSearchRequest().indicesOptions()).usingRecursiveComparison()
 				.isEqualTo(IndicesOptions.LENIENT_EXPAND_OPEN);