diff --git a/packages/website/src/hooks/useDispose.ts b/packages/website/src/hooks/useDispose.ts
index 5acc7a6ea..7c593426b 100644
--- a/packages/website/src/hooks/useDispose.ts
+++ b/packages/website/src/hooks/useDispose.ts
@@ -36,7 +36,10 @@ export function useDispose(gltf: GLTF & ObjectMap, path: string) {
             for (const map of maps) {
               if (!map) continue;
 
-              map.source.data.close();
+              if (map.source.data instanceof ImageBitmap) {
+                map.source.data.close();
+              }
+
               map.dispose();
             }