diff --git a/processing/pre/geom_fromOsteonGeometry.py b/processing/pre/geom_fromOsteonGeometry.py
index 9281eb95b..02cbd0be5 100755
--- a/processing/pre/geom_fromOsteonGeometry.py
+++ b/processing/pre/geom_fromOsteonGeometry.py
@@ -2,7 +2,6 @@
 
 import os
 import sys
-from io import StringIO
 from optparse import OptionParser
 
 import numpy as np