diff --git a/x-pack/plugins/infra/server/lib/adapters/metadata/elasticsearch_metadata_adapter.ts b/x-pack/plugins/infra/server/lib/adapters/metadata/elasticsearch_metadata_adapter.ts
index 5c7406339a55..b48ffb18947e 100644
--- a/x-pack/plugins/infra/server/lib/adapters/metadata/elasticsearch_metadata_adapter.ts
+++ b/x-pack/plugins/infra/server/lib/adapters/metadata/elasticsearch_metadata_adapter.ts
@@ -12,6 +12,7 @@ import {
   InfraMetadataAggregationResponse,
 } from '../framework';
 import { InfraMetadataAdapter, InfraMetricsAdapterResponse } from './adapter_types';
+import { NAME_FIELDS } from '../../constants';
 
 export class ElasticsearchMetadataAdapter implements InfraMetadataAdapter {
   private framework: InfraBackendFrameworkAdapter;
@@ -40,7 +41,7 @@ export class ElasticsearchMetadataAdapter implements InfraMetadataAdapter {
         aggs: {
           nodeName: {
             terms: {
-              field: sourceConfiguration.fields[nodeType],
+              field: NAME_FIELDS[nodeType],
               size: 1,
             },
           },
@@ -92,7 +93,7 @@ export class ElasticsearchMetadataAdapter implements InfraMetadataAdapter {
         aggs: {
           nodeName: {
             terms: {
-              field: sourceConfiguration.fields[nodeType],
+              field: NAME_FIELDS[nodeType],
               size: 1,
             },
           },
diff --git a/x-pack/plugins/infra/server/lib/constants.ts b/x-pack/plugins/infra/server/lib/constants.ts
new file mode 100644
index 000000000000..7925455a36e5
--- /dev/null
+++ b/x-pack/plugins/infra/server/lib/constants.ts
@@ -0,0 +1,17 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { InfraNodeType } from '../graphql/types';
+
+// Used for metadata and snapshots resolvers to find the field that contains
+// a displayable name of a node.
+// Intentionally not the same as xpack.infra.sources.default.fields.{host,container,pod}.
+// TODO: consider moving this to source configuration too.
+export const NAME_FIELDS = {
+  [InfraNodeType.host]: 'host.name',
+  [InfraNodeType.pod]: 'kubernetes.pod.name',
+  [InfraNodeType.container]: 'container.name',
+};