diff --git a/trianglix/Makefile b/trianglix/Makefile
index 705e41c6..10e542e9 100644
--- a/trianglix/Makefile
+++ b/trianglix/Makefile
@@ -7,7 +7,7 @@ include ../build-aux/dirs.mak
 OPTLEVEL?=-g -O2
 CXXFLAGS?=$(OPTLEVEL)
 
-CXXFLAGS:=$(CXXFLAGS) -std=gnu++0x -Wall -Wextra -fno-exceptions -fno-rtti -msse -msse2
+CXXFLAGS:=$(CXXFLAGS) -std=gnu++11 -Wall -Wextra -fno-exceptions -fno-rtti -msse -msse2
 
 BINARY:=trianglix