diff --git a/src/qibocal/protocols/flipping.py b/src/qibocal/protocols/flipping.py
index f95385718..2cdda6b73 100644
--- a/src/qibocal/protocols/flipping.py
+++ b/src/qibocal/protocols/flipping.py
@@ -142,11 +142,9 @@ def _acquisition(
         resonator_type=platform.resonator_type,
         delta_amplitude=params.delta_amplitude,
         pulse_amplitudes={
-            qubit: (
-                platform.natives.single_qubit[qubit].RX90[0][1].amplitude
-                if params.rx90
-                else platform.natives.single_qubit[qubit].RX[0][1].amplitude
-            )
+            qubit: getattr(
+                platform.natives.single_qubit[qubit], "RX90" if params.rx90 else "RX"
+            )[0][1].amplitude
             for qubit in targets
         },
         rx90=params.rx90,
@@ -249,7 +247,7 @@ def _fit(data: FlippingData) -> FlippingResults:
             correction = popt[2] / 2
 
             if data.rx90:
-                correction = correction / 2
+                correction /= 2
 
             corrected_amplitudes[qubit] = [
                 float(detuned_pulse_amplitude * np.pi / (np.pi + correction)),