diff --git a/qiskit_ibm_provider/transpiler/passes/scheduling/block_base_padder.py b/qiskit_ibm_provider/transpiler/passes/scheduling/block_base_padder.py
index 336f5072c..5d473527e 100644
--- a/qiskit_ibm_provider/transpiler/passes/scheduling/block_base_padder.py
+++ b/qiskit_ibm_provider/transpiler/passes/scheduling/block_base_padder.py
@@ -319,7 +319,9 @@ def _add_block_terminating_barrier(
                 qubits = self._block_dag.qubits
             else:
                 barrier = Barrier(self._block_dag.num_qubits() - len(self._idle_qubits))
-                qubits = [x for x in self._block_dag.qubits if x not in self._idle_qubits]
+                qubits = [
+                    x for x in self._block_dag.qubits if x not in self._idle_qubits
+                ]
 
             barrier_node = self._apply_scheduled_op(
                 block_idx,