diff --git a/x-pack/plugins/lens/public/indexpattern_datasource/operations/definitions/date_histogram.test.tsx b/x-pack/plugins/lens/public/indexpattern_datasource/operations/definitions/date_histogram.test.tsx
index 8c637a149a175..ac6bf63c37110 100644
--- a/x-pack/plugins/lens/public/indexpattern_datasource/operations/definitions/date_histogram.test.tsx
+++ b/x-pack/plugins/lens/public/indexpattern_datasource/operations/definitions/date_histogram.test.tsx
@@ -254,6 +254,7 @@ describe('date_histogram', () => {
           fields: [
             {
               name: 'timestamp',
+              displayName: 'timestamp',
               aggregatable: true,
               searchable: true,
               type: 'date',