diff --git a/src/SConscript b/src/SConscript
index 3110f98..e34a89d 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -14,7 +14,7 @@
 ## SConstruct file (set with 'Export') - this is very important
 
 Import( 'env' )
-myenv=env.Copy()
+myenv=env.Clone()
 
 #############################
 ## the programs to build