diff --git a/crates/circuit/src/operations.rs b/crates/circuit/src/operations.rs
index 0515e3242579..d7b9fc8d1542 100644
--- a/crates/circuit/src/operations.rs
+++ b/crates/circuit/src/operations.rs
@@ -642,7 +642,7 @@ impl Operation for StandardGate {
                             0,
                             &[(
                                 OperationType::Standard(Self::UGate),
-                                Some(&defparams),
+                                &defparams,
                                 &[0],
                             )],
                             FLOAT_ZERO,
diff --git a/qiskit/circuit/library/standard_gates/r.py b/qiskit/circuit/library/standard_gates/r.py
index 31c570bceffd..00d979480a78 100644
--- a/qiskit/circuit/library/standard_gates/r.py
+++ b/qiskit/circuit/library/standard_gates/r.py
@@ -59,11 +59,10 @@ def __init__(
         *,
         duration=None,
         unit="dt",
-        _skip_validation=False,
     ):
         """Create new r single-qubit gate."""
         super().__init__("r", 1, [theta, phi], label=label, duration=duration, unit=unit,
-                         _skip_validation=_skip_validation,)
+                         )
 
     def _define(self):
         """
diff --git a/test/python/circuit/test_parameters.py b/test/python/circuit/test_parameters.py
index 5f3e914a2491..2c8e2ee83d48 100644
--- a/test/python/circuit/test_parameters.py
+++ b/test/python/circuit/test_parameters.py
@@ -1641,7 +1641,6 @@ def test_complex_angle_raises_when_not_supported(self):
             ref.r(0, 0, 0)
             self.assertEqual(bound, ref)
 
-        self.skipTest("Temporarily disabled for #12459")
         with self.subTest("binding x to 1 yields complex parameters"):
             # RGate does not support complex parameters
             with self.assertRaises(CircuitError):