diff --git a/package.json b/package.json
index 67d8248..1ac1200 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
     "email": "bartlomiej@krakowski.dev"
   },
   "main": "dist/index.js",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/src/index.d.ts b/src/index.d.ts
index 697d770..9a20522 100644
--- a/src/index.d.ts
+++ b/src/index.d.ts
@@ -1,8 +1,12 @@
 import { WeekInfo } from "./types"
 
-declare namespace Intl {
-  interface Locale {
-    getWeekInfo: () => WeekInfo
-    weekInfo?: WeekInfo
+declare global {
+  namespace Intl {
+    interface Locale {
+      getWeekInfo(): WeekInfo;
+      weekInfo?: WeekInfo;
+    }
   }
-}
\ No newline at end of file
+}
+
+export {};
\ No newline at end of file