diff --git a/src/tribler/core/components/bandwidth_accounting/community/payload.py b/src/tribler/core/components/bandwidth_accounting/community/payload.py
index d9ed8d0b108..9dcb024facb 100644
--- a/src/tribler/core/components/bandwidth_accounting/community/payload.py
+++ b/src/tribler/core/components/bandwidth_accounting/community/payload.py
@@ -14,7 +14,7 @@ class BandwidthTransactionPayload(VariablePayload):
              "timestamp", "request_id"]
 
     @classmethod
-    def from_transaction(cls, transaction: BandwidthTransaction, request_id: int) -> BandwidthTransactionPayload:  # noqa: F821
+    def from_transaction(cls, transaction, request_id: int) -> BandwidthTransactionPayload:
         return BandwidthTransactionPayload(
             transaction.sequence_number,
             transaction.public_key_a,
diff --git a/src/tribler/core/components/bandwidth_accounting/db/transaction.py b/src/tribler/core/components/bandwidth_accounting/db/transaction.py
index 273dadaeaf7..f73c79fa2ab 100644
--- a/src/tribler/core/components/bandwidth_accounting/db/transaction.py
+++ b/src/tribler/core/components/bandwidth_accounting/db/transaction.py
@@ -88,7 +88,7 @@ def is_valid(self) -> bool:
         return True
 
     @classmethod
-    def from_payload(cls, payload: BandwidthTransactionPayload) -> BandwidthTransaction:  # noqa: F821
+    def from_payload(cls, payload: BandwidthTransactionPayload):
         """
         Create a block according to a given payload.
         This method can be used when receiving a block from the network.
@@ -99,10 +99,10 @@ def from_payload(cls, payload: BandwidthTransactionPayload) -> BandwidthTransact
                    payload.signature_a, payload.signature_b, payload.amount, payload.timestamp)
 
     @classmethod
-    def from_db(cls, db_obj: BandwidthTransaction) -> BandwidthTransactionData:  # noqa: F821
+    def from_db(cls, db_obj) -> BandwidthTransactionData:
         """
         Return a BandwidthTransaction object from a database object.
-        :param db_obj: The database object to convert.
+        :param db_obj: The BandwidthTransaction object to convert.
         :return A BandwidthTransaction object, based on the database object.
         """
         return BandwidthTransactionData(db_obj.sequence_number, db_obj.public_key_a, db_obj.public_key_b,