diff --git a/public/app/plugins/datasource/cloud-monitoring/CloudMonitoringMetricFindQuery.ts b/public/app/plugins/datasource/cloud-monitoring/CloudMonitoringMetricFindQuery.ts
index b3bff0f4753..b8132e06bae 100644
--- a/public/app/plugins/datasource/cloud-monitoring/CloudMonitoringMetricFindQuery.ts
+++ b/public/app/plugins/datasource/cloud-monitoring/CloudMonitoringMetricFindQuery.ts
@@ -100,6 +100,7 @@ export default class CloudMonitoringMetricFindQuery {
       return [];
     }
     const refId = 'handleLabelValuesQuery';
+    // REDUCE_MEAN is needed so the groupBy is not ignored
     const labels = await this.datasource.getLabels(selectedMetricType, refId, projectName, {
       groupBys: [labelKey],
       crossSeriesReducer: 'REDUCE_MEAN',
diff --git a/public/app/plugins/datasource/cloud-monitoring/components/MetricQueryEditor.tsx b/public/app/plugins/datasource/cloud-monitoring/components/MetricQueryEditor.tsx
index 40a129cbb04..48fcf346bc7 100644
--- a/public/app/plugins/datasource/cloud-monitoring/components/MetricQueryEditor.tsx
+++ b/public/app/plugins/datasource/cloud-monitoring/components/MetricQueryEditor.tsx
@@ -66,7 +66,7 @@ function Editor({
   useEffect(() => {
     if (projectName && metricType) {
       datasource
-        .getLabels(metricType, refId, projectName, { groupBys, crossSeriesReducer })
+        .getLabels(metricType, refId, projectName)
         .then((labels) => setState((prevState) => ({ ...prevState, labels })));
     }
   }, [datasource, groupBys, metricType, projectName, refId, crossSeriesReducer]);