diff --git a/cashu/mint/crud.py b/cashu/mint/crud.py
index 9a1dd54..75f4471 100644
--- a/cashu/mint/crud.py
+++ b/cashu/mint/crud.py
@@ -155,10 +155,10 @@ class LedgerCrud(ABC):
         ...
 
     @abstractmethod
-    async def get_mint_quote_by_checking_id(
+    async def get_mint_quote_by_request(
         self,
         *,
-        checking_id: str,
+        request: str,
         db: Database,
         conn: Optional[Connection] = None,
     ) -> Optional[MintQuote]:
@@ -403,19 +403,19 @@ class LedgerCrudSqlite(LedgerCrud):
         )
         return MintQuote.from_row(row) if row else None
 
-    async def get_mint_quote_by_checking_id(
+    async def get_mint_quote_by_request(
         self,
         *,
-        checking_id: str,
+        request: str,
         db: Database,
         conn: Optional[Connection] = None,
     ) -> Optional[MintQuote]:
         row = await (conn or db).fetchone(
             f"""
             SELECT * from {table_with_schema(db, 'mint_quotes')}
-            WHERE checking_id = ?
+            WHERE request = ?
             """,
-            (checking_id,),
+            (request,),
         )
         return MintQuote.from_row(row) if row else None
 
diff --git a/cashu/mint/ledger.py b/cashu/mint/ledger.py
index b62072d..8f8a231 100644
--- a/cashu/mint/ledger.py
+++ b/cashu/mint/ledger.py
@@ -475,8 +475,8 @@ class Ledger(LedgerVerification, LedgerSpendingConditions):
         # check if there is a mint quote with the same payment request
         # so that we can handle the transaction internally without lightning
         # and respond with zero fees
-        mint_quote = await self.crud.get_mint_quote_by_checking_id(
-            checking_id=invoice_obj.payment_hash, db=self.db
+        mint_quote = await self.crud.get_mint_quote_by_request(
+            request=melt_quote.request, db=self.db
         )
         if mint_quote:
             # internal transaction, validate and return amount from
@@ -561,8 +561,8 @@ class Ledger(LedgerVerification, LedgerSpendingConditions):
 
         # we only check the state with the backend if there is no associated internal
         # mint quote for this melt quote
-        mint_quote = await self.crud.get_mint_quote_by_checking_id(
-            checking_id=melt_quote.checking_id, db=self.db
+        mint_quote = await self.crud.get_mint_quote_by_request(
+            request=melt_quote.request, db=self.db
         )
 
         if not melt_quote.paid and not mint_quote and check_quote_with_backend:
@@ -600,8 +600,8 @@ class Ledger(LedgerVerification, LedgerSpendingConditions):
         """
         # first we check if there is a mint quote with the same payment request
         # so that we can handle the transaction internally without the backend
-        mint_quote = await self.crud.get_mint_quote_by_checking_id(
-            checking_id=melt_quote.checking_id, db=self.db
+        mint_quote = await self.crud.get_mint_quote_by_request(
+            request=melt_quote.request, db=self.db
         )
         if not mint_quote:
             return melt_quote
diff --git a/tests/test_mint_db.py b/tests/test_mint_db.py
index 1d006a2..92caf1e 100644
--- a/tests/test_mint_db.py
+++ b/tests/test_mint_db.py
@@ -46,6 +46,22 @@ async def test_mint_quote(wallet1: Wallet, ledger: Ledger):
     assert quote.created_time
 
 
+@pytest.mark.asyncio
+async def test_get_mint_quote_by_request(wallet1: Wallet, ledger: Ledger):
+    invoice = await wallet1.request_mint(128)
+    assert invoice is not None
+    quote = await ledger.crud.get_mint_quote_by_request(
+        request=invoice.bolt11, db=ledger.db
+    )
+    assert quote is not None
+    assert quote.quote == invoice.id
+    assert quote.amount == 128
+    assert quote.unit == "sat"
+    assert not quote.paid
+    assert quote.paid_time is None
+    assert quote.created_time
+
+
 @pytest.mark.asyncio
 async def test_melt_quote(wallet1: Wallet, ledger: Ledger):
     invoice = await wallet1.request_mint(128)