diff --git a/dataprocessing/readtools.py b/dataprocessing/readtools.py
index 64f7b57a1c6c22b13e0aeef01e9d924cb6da9d5f..b7d5c643e4ceade42c1a2ebbc11c699b86e45da9 100644
--- a/dataprocessing/readtools.py
+++ b/dataprocessing/readtools.py
@@ -73,9 +73,8 @@ def read_timeseries_dpsim_real(filename, timeseries_names=None):
         column_names.remove('time')
         timestamps = pd_df.iloc[:,0]
 
-        if header is True:
-            for name in column_names:
-                timeseries_list.append(TimeSeries(name, timestamps, pd_df[name].values))
+        for name in column_names:
+            timeseries_list.append(TimeSeries(name, timestamps, pd_df[name].values))
     else:
         # Read in specified time series
         print('no column names specified yet')