diff --git a/package.json b/package.json
index 80c7bf42a..4476c2c9d 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "test:no-build": "node scripts/test.mjs",
     "test:only": "npm run build && node scripts/test.mjs --test-only",
     "test:update-snapshots": "npm run build && node scripts/test.mjs --test-update-snapshots",
-    "prepare": "npm run clean && node --experimental-strip-types scripts/prepare.ts",
+    "prepare": "node --experimental-strip-types scripts/prepare.ts",
     "verify-server-json-version": "node --experimental-strip-types scripts/verify-server-json-version.ts",
     "eval": "npm run build && CHROME_DEVTOOLS_MCP_NO_USAGE_STATISTICS=true node --experimental-strip-types scripts/eval_gemini.ts",
     "count-tokens": "node --experimental-strip-types scripts/count_tokens.ts"