diff --git a/packages/basic/index.js b/packages/basic/index.js
index 5e84599..4381cb9 100644
--- a/packages/basic/index.js
+++ b/packages/basic/index.js
@@ -72,8 +72,9 @@ module.exports = {
               'unpkg',
               'jsdelivr',
               'exports',
-              'bin',
               'files',
+              'bin',
+              'sideEffects',
               'scripts',
               'peerDependencies',
               'peerDependenciesMeta',