diff --git a/package.json b/package.json
index 5c72453..f08d44d 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "description": "Gatsby v5 transformer for unified.js",
   "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "scripts": {
     "build": "tsc",
     "watch": "tsc --watch",
diff --git a/tsconfig.json b/tsconfig.json
index 3501ec9..add791c 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -105,7 +105,8 @@
     // "target": "ES2022",
     "module": "NodeNext",
     "moduleResolution": "NodeNext",
-    "outDir": "./dist"
+    "outDir": "./dist",
+    "declaration": true
   },
   "include": ["./src/**/*"],
   "exclude": [