diff --git a/src/orquestra/integrations/qiskit/conversions/_circuit_conversions.py b/src/orquestra/integrations/qiskit/conversions/_circuit_conversions.py
index 41a3cce..2cb7f3e 100644
--- a/src/orquestra/integrations/qiskit/conversions/_circuit_conversions.py
+++ b/src/orquestra/integrations/qiskit/conversions/_circuit_conversions.py
@@ -56,7 +56,7 @@ def _orquestra_expr_from_qiskit(expr):
     _builtin_gates.YY: qiskit.circuit.library.RYYGate,
     _builtin_gates.ZZ: qiskit.circuit.library.RZZGate,
     _builtin_gates.U3: qiskit.circuit.library.U3Gate,
-    _builtin_gates.Delay: qiskit.circuit.Delay
+    _builtin_gates.Delay: qiskit.circuit.Delay,
 }
 
 
diff --git a/tests/orquestra/integrations/qiskit/conversions/circuit_conversions_test.py b/tests/orquestra/integrations/qiskit/conversions/circuit_conversions_test.py
index 5d9e23e..a80f593 100644
--- a/tests/orquestra/integrations/qiskit/conversions/circuit_conversions_test.py
+++ b/tests/orquestra/integrations/qiskit/conversions/circuit_conversions_test.py
@@ -274,8 +274,8 @@ def _make_qiskit_circuit(n_qubits, commands, n_cbits=0):
     ),
     (
         _circuit.Circuit([_builtin_gates.Delay(1)(0)]),
-        _make_qiskit_circuit(1, [("delay", (1, 0))])
-    )
+        _make_qiskit_circuit(1, [("delay", (1, 0))]),
+    ),
 ]