diff --git a/km3buu/output.py b/km3buu/output.py
index 87fe0c6c6cc226b09fd42f3628ce0bc07cb72af0..bf6b0111d2fc0ab7c5c737147ffb9d99dd97fe6f 100644
--- a/km3buu/output.py
+++ b/km3buu/output.py
@@ -269,8 +269,8 @@ class GiBUUOutput:
             xsec, energy_bins = np.histogram(energies,
                                              weights=weights,
                                              bins=np.logspace(
-                                                 np.log10(Emin), np.log10(Emax),
-                                                 15))
+                                                 np.log10(Emin),
+                                                 np.log10(Emax), 15))
             deltaE = np.mean(self.flux_data["energy"][1:] -
                              self.flux_data["energy"][:-1])
             bin_events = np.array([