diff --git a/src/custodian/vasp/handlers.py b/src/custodian/vasp/handlers.py
index 875d13eb..2b152176 100644
--- a/src/custodian/vasp/handlers.py
+++ b/src/custodian/vasp/handlers.py
@@ -735,8 +735,7 @@ def correct(self, directory="./"):
                     UserWarning,
                 )
 
-            elif (nbands := vi["INCAR"].get("NBANDS")):
-                
+            elif nbands := vi["INCAR"].get("NBANDS"):
                 kpar = vi["INCAR"].get("KPAR", 1)
                 ncore = vi["INCAR"].get("NCORE", 1)
                 # If the user set an NBANDS that isn't compatible with parallelization settings,
diff --git a/tests/vasp/test_handlers.py b/tests/vasp/test_handlers.py
index aed63075..56a9b91a 100644
--- a/tests/vasp/test_handlers.py
+++ b/tests/vasp/test_handlers.py
@@ -606,19 +606,16 @@ def test_auto_nbands(self) -> None:
         assert "auto_nbands" in dct["errors"]
 
     def test_auto_nbands_bad_parallelization(self) -> None:
-
         shutil.copy("OUTCAR_auto_nbands_parallel", "OUTCAR")
         # hacky way to deal with custodian CI unzipping test files
         Incar.from_file(zpath("INCAR.auto_nbands_parallel")).write_file("INCAR")
 
         handler = VaspErrorHandler(zpath("vasp.auto_nbands"))
         handler.check()
-        with pytest.warns(UserWarning, match = "setting was incompatible with your parallelization"):
+        with pytest.warns(UserWarning, match="setting was incompatible with your parallelization"):
             dct = handler.correct()
         assert "auto_nbands" in dct["errors"]
-        assert dct["actions"] == [
-            {"dict": "INCAR", "action": {"_set": {"NBANDS": 64}}}
-        ]
+        assert dct["actions"] == [{"dict": "INCAR", "action": {"_set": {"NBANDS": 64}}}]
 
 
 class AliasingErrorHandlerTest(PymatgenTest):