diff --git a/public/app/plugins/datasource/elasticsearch/bucket_agg.ts b/public/app/plugins/datasource/elasticsearch/bucket_agg.ts
index ec4c5071fa1..572d0f3291e 100644
--- a/public/app/plugins/datasource/elasticsearch/bucket_agg.ts
+++ b/public/app/plugins/datasource/elasticsearch/bucket_agg.ts
@@ -17,6 +17,7 @@ export function elasticBucketAgg() {
 }
 
 export class ElasticBucketAggCtrl {
+  /** @nginject */
   constructor($scope, uiSegmentSrv, $q, $rootScope) {
     var bucketAggs = $scope.target.bucketAggs;