From 2c7e07c2126cb3d46fc02cf8d8180663a144ca91 Mon Sep 17 00:00:00 2001
From: callebtc <93376500+callebtc@users.noreply.github.com>
Date: Sun, 11 Sep 2022 15:36:37 +0300
Subject: [PATCH] set

---
 mint/ledger.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mint/ledger.py b/mint/ledger.py
index 6dfb705..9c2a372 100644
--- a/mint/ledger.py
+++ b/mint/ledger.py
@@ -22,7 +22,7 @@ class Ledger:
         self.db = Database("mint", db)
 
     async def load_used_proofs(self):
-        self.proofs_used = await get_proofs_used(db=self.db)
+        self.proofs_used = set(await get_proofs_used(db=self.db))
 
     @staticmethod
     def _derive_keys(master_key):