diff --git a/packages/mithril-tree-component/rollup.config.js b/packages/mithril-tree-component/rollup.config.js
index <HASH>..<HASH> 100644
--- a/packages/mithril-tree-component/rollup.config.js
+++ b/packages/mithril-tree-component/rollup.config.js
@@ -63,6 +63,6 @@ export default {
     // Resolve source maps to the original source
     sourceMaps(),
     // minifies generated bundles
-    production && terser({ sourcemap: true }),
+    production && terser(),
   ],
 };
Removed sourcemap option from terser