diff --git a/processing/post/filterTable.py b/processing/post/filterTable.py
index ab904ee06..1ebf6a238 100755
--- a/processing/post/filterTable.py
+++ b/processing/post/filterTable.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: UTF-8 no BOM -*-
 
-import os,re,sys,fnmatch
+import os,re,sys,fnmatch,math,random
 import numpy as np
 from optparse import OptionParser
 import damask