diff --git a/frontend/src/metabase/query_builder/components/AggregationWidget.jsx b/frontend/src/metabase/query_builder/components/AggregationWidget.jsx
index 528a6ae9b1243af2ed70b72f022dd59072697366..ceabaf5f32bbf6b796fee329f2c00fc6d39e57af 100644
--- a/frontend/src/metabase/query_builder/components/AggregationWidget.jsx
+++ b/frontend/src/metabase/query_builder/components/AggregationWidget.jsx
@@ -25,7 +25,7 @@ export default class AggregationWidget extends Component {
     }
 
     static propTypes = {
-        aggregation: PropTypes.array.isRequired,
+        aggregation: PropTypes.array,
         tableMetadata: PropTypes.object.isRequired,
         customFields: PropTypes.object,
         updateAggregation: PropTypes.func.isRequired