diff --git a/Makefile b/Makefile
index abdeb0bb8..a4bbe876f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 export CC  = gcc
-export CXX = clang++
+export CXX = g++
 export MPICXX = mpicxx
 export LDFLAGS= -pthread -lm 
 export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fPIC