diff --git a/package.json b/package.json
index 965073d..44bf3d4 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "scripts": {
     "postinstall": "npm run bootstrap",
     "bootstrap": "lerna bootstrap --hoist",
-    "preclean": "rimraf */*/lib",
+    "preclean": "rimraf \"{filters,bundles,packages}/*/lib\"",
     "clean": "lerna clean",
     "predeploy": "npm run docs",
     "pretest": "npm run lint && npm run build:dev",