diff --git a/lib/py/src/TSCons.py b/lib/py/src/TSCons.py
index da8d283..ed2601a 100644
--- a/lib/py/src/TSCons.py
+++ b/lib/py/src/TSCons.py
@@ -19,6 +19,8 @@
 
 from os import path
 from SCons.Builder import Builder
+from six.moves import map
+from six.moves import zip
 
 
 def scons_env(env, add=''):