diff --git a/rollup.config.js b/rollup.config.js
index 831a888..b98c25d 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -11,7 +11,9 @@ const config = (file, plugins) => ({
     plugins
 });
 
+const bubleConfig = {transforms: {dangerousForOf: true}};
+
 export default [
-    config('delaunator.js', [buble()]),
-    config('delaunator.min.js', [terser(), buble()])
+    config('delaunator.js', [buble(bubleConfig)]),
+    config('delaunator.min.js', [terser(), buble(bubleConfig)])
 ];