diff --git a/module.json b/module.json
index 98395c8..e54d78b 100644
--- a/module.json
+++ b/module.json
@@ -26,6 +26,16 @@
       "why": "the track-layout CDN, the race posters and the Kometa metadata over http; its public name is a route grant and the proxy reaches it here. Kometa fetches the metadata and every poster by that public name"
     }
   ],
+  "data": {
+    "own": [
+      {
+        "id": "cache",
+        "path": "${dir:cache}",
+        "class": "cache",
+        "why": "the generated track layouts and posters, rebuilt on demand"
+      }
+    ]
+  },
   "resources": [
     {
       "id": "state",