diff --git a/pyerrors/input/hadrons.py b/pyerrors/input/hadrons.py
index aa9d487b..1d7b9f67 100644
--- a/pyerrors/input/hadrons.py
+++ b/pyerrors/input/hadrons.py
@@ -152,7 +152,7 @@ def read_ExternalLeg_hd5(path, filestem, ens_id, idl=None):
         raw_data = file['ExternalLeg/corr'][0][0].view('complex')
         corr_data.append(raw_data)
         if mom is None:
-            mom = np.array(str(file['ExternalLeg/info'].attrs['pIn'])[3:-2].strip().split(' '), dtype=float)
+            mom = np.array(str(file['ExternalLeg/info'].attrs['pIn'])[3:-2].strip().split(), dtype=float)
         file.close()
     corr_data = np.array(corr_data)
 
@@ -197,9 +197,9 @@ def read_Bilinear_hd5(path, filestem, ens_id, idl=None):
             raw_data = file['Bilinear/Bilinear_' + str(i) + '/corr'][0][0].view('complex')
             corr_data[name].append(raw_data)
             if mom_in is None:
-                mom_in = np.array(str(file['Bilinear/Bilinear_' + str(i) + '/info'].attrs['pIn'])[3:-2].strip().split(' '), dtype=float)
+                mom_in = np.array(str(file['Bilinear/Bilinear_' + str(i) + '/info'].attrs['pIn'])[3:-2].strip().split(), dtype=float)
             if mom_out is None:
-                mom_out = np.array(str(file['Bilinear/Bilinear_' + str(i) + '/info'].attrs['pOut'])[3:-2].strip().split(' '), dtype=float)
+                mom_out = np.array(str(file['Bilinear/Bilinear_' + str(i) + '/info'].attrs['pOut'])[3:-2].strip().split(), dtype=float)
 
         file.close()
 
@@ -262,9 +262,9 @@ def read_Fourquark_hd5(path, filestem, ens_id, idl=None, vertices=["VA", "AV"]):
                 raw_data = file[tree + str(i) + '/corr'][0][0].view('complex')
                 corr_data[name].append(raw_data)
                 if mom_in is None:
-                    mom_in = np.array(str(file[tree + str(i) + '/info'].attrs['pIn'])[3:-2].strip().split(' '), dtype=float)
+                    mom_in = np.array(str(file[tree + str(i) + '/info'].attrs['pIn'])[3:-2].strip().split(), dtype=float)
                 if mom_out is None:
-                    mom_out = np.array(str(file[tree + str(i) + '/info'].attrs['pOut'])[3:-2].strip().split(' '), dtype=float)
+                    mom_out = np.array(str(file[tree + str(i) + '/info'].attrs['pOut'])[3:-2].strip().split(), dtype=float)
 
         file.close()