diff --git a/simpa/utils/libraries/spectrum_library.py b/simpa/utils/libraries/spectrum_library.py
index 6a1af7ee..be1cdddd 100644
--- a/simpa/utils/libraries/spectrum_library.py
+++ b/simpa/utils/libraries/spectrum_library.py
@@ -247,7 +247,7 @@ def scattering_from_rayleigh_and_mie_theory(name: str, mus_at_500_nm: float = 1.
         :return: A Spectrum instance based on Rayleigh and Mie scattering theory.
         """
         wavelengths = np.arange(450, 1001, 1)
-        scattering = (mus_at_500_nm * (fraction_rayleigh_scattering * (wavelengths / 500) ** 1e-4 +
+        scattering = (mus_at_500_nm * (fraction_rayleigh_scattering * (wavelengths / 500) ** (-4) +
                       (1 - fraction_rayleigh_scattering) * (wavelengths / 500) ** -mie_power_law_coefficient))
         return Spectrum(name, wavelengths, scattering)