diff --git a/exponax/stepper/generic/_polynomial.py b/exponax/stepper/generic/_polynomial.py
index 372611b..2780569 100644
--- a/exponax/stepper/generic/_polynomial.py
+++ b/exponax/stepper/generic/_polynomial.py
@@ -18,8 +18,8 @@ def __init__(
         num_points: int,
         dt: float,
         *,
-        coefficients: tuple[float, ...] = (10.0, 0.0, 0.01),
-        polynomial_scales: tuple[float, ...] = (0.0, 0.0, 10.0),
+        coefficients: tuple[float, ...] = (10.0, 0.0, 1.0),
+        polynomial_scales: tuple[float, ...] = (0.0, 0.0, -10.0),
         order=2,
         dealiasing_fraction: float = 2 / 3,
         num_circle_points: int = 16,