diff --git a/site/src/components/Explore.svelte b/site/src/components/Explore.svelte
index dfd684e..102e323 100644
--- a/site/src/components/Explore.svelte
+++ b/site/src/components/Explore.svelte
@@ -146,7 +146,8 @@
     map.setLayoutProperty('explore-lines',       'visibility', view === 'lines'   ? 'visible' : 'none');
     map.setLayoutProperty('explore-heat-global', 'visibility', view === 'heatmap' && heatMode === 'global' ? 'visible' : 'none');
     for (const t of HEAT_TYPES)
-      map.setLayoutProperty(`explore-heat-${t}`, 'visibility', view === 'heatmap' && heatMode === 'bytype' ? 'visible' : 'none');
+      map.setLayoutProperty(`explore-heat-${t}`, 'visibility',
+        view === 'heatmap' && heatMode === 'bytype' && selectedTypes.has(t) ? 'visible' : 'none');
   }
 
   function _fitBounds(ts: Track[]) {