diff --git a/package.json b/package.json
index 8855af46..5c114ce7 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,7 @@
   },
   "files": [
     "index.js",
+    "index.js.map",
     "tools/tty.js",
     "LICENSE"
   ],