diff --git a/cashu/core/nuts/nuts.py b/cashu/core/nuts/nuts.py
index 1b3613e..4d2b306 100644
--- a/cashu/core/nuts/nuts.py
+++ b/cashu/core/nuts/nuts.py
@@ -16,3 +16,4 @@ CACHE_NUT = 19
 MINT_QUOTE_SIGNATURE_NUT = 20
 CLEAR_AUTH_NUT = 21
 BLIND_AUTH_NUT = 22
+METHOD_BOLT11_NUT = 23