diff --git a/src/hepstats/splot/sweights.py b/src/hepstats/splot/sweights.py
index 0a777ec3..32703299 100644
--- a/src/hepstats/splot/sweights.py
+++ b/src/hepstats/splot/sweights.py
@@ -26,7 +26,7 @@ def is_sum_of_extended_pdfs(model) -> bool:
     return all(m.is_extended for m in model.get_models()) and model.is_extended
 
 
-def compute_sweights(model, x: np.ndarray, *,atol_exceptions: float | None = None) -> dict[Any, np.ndarray]:
+def compute_sweights(model, x: np.ndarray, *, atol_exceptions: float | None = None) -> dict[Any, np.ndarray]:
     """Computes sWeights from probability density functions for different components/species in a fit model
     (for instance signal and background) fitted on some data `x`.