diff --git a/processing/post/vtk_addRectilinearGridData.py b/processing/post/vtk_addRectilinearGridData.py
index f8d483bf0..7d7c39123 100755
--- a/processing/post/vtk_addRectilinearGridData.py
+++ b/processing/post/vtk_addRectilinearGridData.py
@@ -3,7 +3,6 @@
 
 import os,vtk
 import damask
-import numpy as np
 from vtk.util import numpy_support
 from collections import defaultdict
 from optparse import OptionParser