diff --git a/cashu/mint/ledger.py b/cashu/mint/ledger.py
index 26f6ee1..6895bf5 100644
--- a/cashu/mint/ledger.py
+++ b/cashu/mint/ledger.py
@@ -194,7 +194,9 @@ class Ledger:
             raise Exception("tokens already issued for this invoice.")
         total_requested = sum([amount for amount in amounts])
         if total_requested > invoice.amount:
-            raise Exception(f"Requested amount too high: {total_requested}. Invoice amount: {invoice.amount}")
+            raise Exception(
+                f"Requested amount too high: {total_requested}. Invoice amount: {invoice.amount}"
+            )
         status = await WALLET.get_invoice_status(payment_hash)
         if status.paid:
             await update_lightning_invoice(payment_hash, issued=True, db=self.db)
diff --git a/cashu/mint/router.py b/cashu/mint/router.py
index fec009f..9974826 100644
--- a/cashu/mint/router.py
+++ b/cashu/mint/router.py
@@ -41,7 +41,11 @@ async def request_mint(amount: int = 0):
 
 
 @router.post("/mint")
-async def mint(payloads: MintRequest, payment_hash: Union[str, None] = None):
+async def mint(
+    payloads: MintRequest,
+    bolt11: Union[str, None] = None,
+    payment_hash: Union[str, None] = None,
+):
     """
     Requests the minting of tokens belonging to a paid payment request.
 
diff --git a/cashu/wallet/wallet.py b/cashu/wallet/wallet.py
index b32421a..fc1fb84 100644
--- a/cashu/wallet/wallet.py
+++ b/cashu/wallet/wallet.py
@@ -208,7 +208,7 @@ class LedgerAPI:
         )
         resp.raise_for_status()
         return_dict = resp.json()
-        
+
         return return_dict
 
     async def check_fees(self, payment_request: str):
@@ -230,7 +230,7 @@ class LedgerAPI:
             json=payload.dict(),
         )
         resp.raise_for_status()
-        
+
         return_dict = resp.json()
         return return_dict