diff --git a/packages/website/src/hooks/useDispose.ts b/packages/website/src/hooks/useDispose.ts
index 5acc7a6ea..827ccd17d 100644
--- a/packages/website/src/hooks/useDispose.ts
+++ b/packages/website/src/hooks/useDispose.ts
@@ -36,7 +36,9 @@ export function useDispose(gltf: GLTF & ObjectMap, path: string) {
             for (const map of maps) {
               if (!map) continue;
 
-              map.source.data.close();
+              if (typeof map.source.data.close === "function") {
+                map.source.data.close();
+              }
               map.dispose();
             }