diff --git a/src/components/ModalSources.jsx b/src/components/ModalSources.jsx
index b1b3b0ad..6366112f 100644
--- a/src/components/ModalSources.jsx
+++ b/src/components/ModalSources.jsx
@@ -128,8 +128,8 @@ class AddSource extends React.Component {
       }
       case 'geojson_json': return {
         type: 'geojson',
-        data: {},
-        cluster: false
+        cluster: source.cluster || false,
+        data: {}
       }
       case 'tilejson_vector': return {
         type: 'vector',