diff --git a/src/qibolab/_core/native.py b/src/qibolab/_core/native.py
index fbc37f32d..400e58384 100644
--- a/src/qibolab/_core/native.py
+++ b/src/qibolab/_core/native.py
@@ -82,9 +82,8 @@ def R(self, theta: float = np.pi, phi: float = 0.0) -> PulseSequence:
         """
         if self.RX90 != None:
             return rotation(self.RX, 2 * theta, phi)
-        else:
-            assert self.RX is not None
-            return rotation(self.RX, theta, phi)
+        assert self.RX is not None
+        return rotation(self.RX, theta, phi)
 
 
 class TwoQubitNatives(NativeContainer):