diff --git a/km3buu/propagation.py b/km3buu/propagation.py
index 61b59a9cab0137a0ec79af8a2dfc3f9a0aa669a3..4c3bbe0da0d56f6bcd49e35d8354aa5e5ad3ad68 100644
--- a/km3buu/propagation.py
+++ b/km3buu/propagation.py
@@ -47,7 +47,7 @@ def _setup_propagator(max_distance, particle_definition):
     crosssection = pp.crosssection.make_std_crosssection(
         particle_def=particle_definition,
         target=PROPOSAL_TARGET,
-        interpolate=True,
+        interpolate=False,
         cuts=pp.EnergyCutSettings(np.inf, 0.05, False))
     collection = pp.PropagationUtilityCollection()
     collection.displacement = pp.make_displacement(crosssection, True)