diff --git a/src/Mod/Draft/DraftTools.py b/src/Mod/Draft/DraftTools.py
index 8f1a869e0..6bedd830d 100644
--- a/src/Mod/Draft/DraftTools.py
+++ b/src/Mod/Draft/DraftTools.py
@@ -38,7 +38,7 @@ __url__ = "http://www.freecadweb.org"
 # Generic stuff
 #---------------------------------------------------------------------------
 
-import os, FreeCAD, FreeCADGui, WorkingPlane, math, re, Draft, Draft_rc, DraftVecUtils
+import sys, os, FreeCAD, FreeCADGui, WorkingPlane, math, re, Draft, Draft_rc, DraftVecUtils
 from FreeCAD import Vector
 from DraftGui import todo,QtCore,QtGui
 from DraftSnap import *