diff --git a/mdevaluate/reader.py b/mdevaluate/reader.py
index d6efecd..3e7bae6 100755
--- a/mdevaluate/reader.py
+++ b/mdevaluate/reader.py
@@ -16,7 +16,7 @@ from array import array
 from zipfile import BadZipFile
 import builtins
 import warnings
-import subprocess
+import subprocess 
 
 import numpy as np
 import MDAnalysis as mdanalysis