diff --git a/SConstruct b/SConstruct
index 2c7d3095..40ebf2f5 100644
--- a/SConstruct
+++ b/SConstruct
@@ -11,6 +11,8 @@ env = Environment(options = opts,
 
 if os.environ.has_key('CC'):
   env.Replace(CC = os.environ['CC'])
+if os.environ.has_key('CXX'):
+  env.Replace(CXX = os.environ['CXX'])
 if os.environ.has_key('CFLAGS'):
   env.Append(CCFLAGS = os.environ['CFLAGS'])
 if os.environ.has_key('LDFLAGS'):