1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 2ffcd8f..c412ee3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 CXX=g++
 CC=gcc
 RM = rm
-CXXFLAGS=-O3
+CXXFLAGS=-std=c++11 -O3
 GSL_FLAGS:=$(shell pkg-config --libs gsl)
 
 stratified_sampling: rtnorm.o stratified_sampling.o