diff --git a/api/errors.py b/api/errors.py
index 87b94480..2a60340d 100644
--- a/api/errors.py
+++ b/api/errors.py
@@ -114,4 +114,4 @@ def new_error(code: int, parameters: dict = None) -> dict:
     return {
         "error_code": code,
         message_field_name: message,
-    }
\ No newline at end of file
+    }
diff --git a/api/tests/test_errors.py b/api/tests/test_errors.py
index b0df7b8f..6afc9733 100644
--- a/api/tests/test_errors.py
+++ b/api/tests/test_errors.py
@@ -59,4 +59,4 @@ class TestErrors(TestCase):
         error = new_error(error_code, {"min_mining_fee_rate": 5})
 
         self.assertEqual(error["error_code"], error_code)
-        self.assertEqual(error["bad_address"], f"The mining fee is too low. Must be higher than {min_mining_fee_rate} Sat/vbyte")
\ No newline at end of file
+        self.assertEqual(error["bad_address"], f"The mining fee is too low. Must be higher than {min_mining_fee_rate} Sat/vbyte")