diff --git a/index.d.ts b/index.d.ts
index 77897f8..a1b35ff 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -94,6 +94,7 @@ declare namespace customPlugin {
     getGroups: () => string[],
     getClientType: () => string | null,
     isFromBackOffice: () => boolean,
+    getMiaHeaders: () => NodeJS.Dict<string | string[]>
     /**
      * @deprecated Do not use this method, use `getHttpClient` instead
      */