diff --git a/app/silphius/server/engine.js b/app/silphius/server/engine.js
index 79bd5a0..afaaf7e 100644
--- a/app/silphius/server/engine.js
+++ b/app/silphius/server/engine.js
@@ -173,7 +173,7 @@ export default class Engine {
                         {
                           type: 'Download',
                           payload: {
-                            data: TileLayers.layer(0).data,
+                            data: TileLayers.layers.map((_, i) => TileLayers.layer(i).data),
                             filename: 'tiles.json',
                           },
                         },