diff --git a/src/ext/three-bvh.js b/src/ext/three-bvh.js
new file mode 120000
index 00000000..49f7db52
--- /dev/null
+++ b/src/ext/three-bvh.js
@@ -0,0 +1 @@
+../../node_modules/three-mesh-bvh/build/index.umd.cjs
\ No newline at end of file