diff --git a/lnbits/static/js/base.js b/lnbits/static/js/base.js
index 2dca1eb..0562309 100644
--- a/lnbits/static/js/base.js
+++ b/lnbits/static/js/base.js
@@ -9,7 +9,7 @@ var LNbits = {
         method: method,
         url: url,
         headers: {
-          'Grpc-Metadata-macaroon': macaroon
+          'api_key': macaroon
         },
         data: data
       });