diff --git a/package.nw/data/maps.json b/package.nw/data/maps.json
index d2a2175..102aece 100644
--- a/package.nw/data/maps.json
+++ b/package.nw/data/maps.json
@@ -183,7 +183,7 @@
     "url": "/map/hamgames/{z}/{x}/{y}.png",
     "attributions": "Mapbox",
     "minZoom": 0,
-    "maxZoom": 5,
+    "maxZoom": 4,
     "offline": true
   }
 }