diff --git a/Python/pywarpx/fields.py b/Python/pywarpx/fields.py
index 674049f8039..35137a849e6 100644
--- a/Python/pywarpx/fields.py
+++ b/Python/pywarpx/fields.py
@@ -1031,11 +1031,13 @@ def GCPPMLWrapper(level=0, include_ghosts=False):
         mf_name="pml_G_cp", level=level, include_ghosts=include_ghosts
     )
 
+
 def MCCEnergyWrapper(level=0, include_ghosts=False):
     return _MultiFABWrapper(
         mf_name="collision_energy_change", level=level, include_ghosts=include_ghosts
     )
 
+
 def MCCIonizWrapper(level=0, include_ghosts=False):
     return _MultiFABWrapper(
         mf_name="collision_ionization", level=level, include_ghosts=include_ghosts