diff --git a/app/src/frontend/map.js b/app/src/frontend/map.js
index d686f633..a1fb294e 100644
--- a/app/src/frontend/map.js
+++ b/app/src/frontend/map.js
@@ -80,8 +80,10 @@ class ColouringMap extends Component {
like: 'likes',
}
const data_tileset = tileset_by_cat[cat];
+ // pick revision id to bust browser cache
+ const rev = this.props.building? this.props.building.revision_id : '';
const dataLayer = data_tileset?
-
+
: null;
// highlight