diff --git a/abacusnbody/hod/abacus_hod.py b/abacusnbody/hod/abacus_hod.py
index 09910bf..7f21716 100644
--- a/abacusnbody/hod/abacus_hod.py
+++ b/abacusnbody/hod/abacus_hod.py
@@ -153,8 +153,8 @@ def __init__(self, sim_params, HOD_params, clustering_params = None, chunk=-1, n
             self.shearbins = np.linspace(-0.5, 0.5, 101)
 
             self.halo_mass_func, edges = np.histogramdd(
-                np.vstack((np.log10(self.halo_data['hmass']), 
-                           self.halo_data.get('hdeltac', np.zeros(len(self.halo_data['hmass']))), 
+                np.vstack((np.log10(self.halo_data['hmass']),
+                           self.halo_data.get('hdeltac', np.zeros(len(self.halo_data['hmass']))),
                            self.halo_data.get('hfenv', np.zeros(len(self.halo_data['hmass']))))).T,
                 bins = [self.logMbins, self.deltacbins, self.fenvbins],
                 weights = self.halo_data['hmultis'])
@@ -168,9 +168,9 @@ def __init__(self, sim_params, HOD_params, clustering_params = None, chunk=-1, n
             assert 'hdeltac' in self.halo_data.keys()
         if self.want_shear:
             assert 'hshear' in self.halo_data.keys()
-            
+
         self.halo_mass_func_wshear, edges = np.histogramdd(
-            np.vstack((np.log10(self.halo_data['hmass']), 
+            np.vstack((np.log10(self.halo_data['hmass']),
                        self.halo_data.get('hdeltac', np.zeros(len(self.halo_data['hmass']))),
                        self.halo_data.get('hfenv', np.zeros(len(self.halo_data['hmass']))),
                        self.halo_data.get('hshear', np.zeros(len(self.halo_data['hmass']))))).T,