diff --git a/package.json b/package.json
index 3b5c3ddf..08fd58fa 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
   "types": "./dist/index.d.ts",
   "typesVersions": {
     "*": {
-      "extra": [
+      "middleware": [
         "./dist/middleware.d.ts"
       ]
     }