diff --git a/package.json b/package.json
index 76a17b8..ea2f982 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,8 @@
   "module": "dist/trace-mapping.mjs",
   "typings": "dist/types/trace-mapping.d.ts",
   "files": [
-    "dist"
+    "dist",
+    "src"
   ],
   "exports": {
     ".": {
diff --git a/tsconfig.json b/tsconfig.json
index 31767a1..3e58ba4 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,6 @@
     "declaration": true,
     "allowSyntheticDefaultImports": true,
     "declarationDir": "dist/types",
-    "outDir": "dist/lib",
     "typeRoots": ["node_modules/@types"]
   },
   "exclude": ["dist"],