diff --git a/test/Makefile b/test/Makefile
index 68a4624..7f6045f 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -2,8 +2,7 @@ include ../Makefile.conf
 
 LDFLAGS=-L../src $(ENGINE_LIB)
 LDLIBS=-lstdc++ -lpEpEngine -lpEpAdapter
-CXXFLAGS+=-I../src $(ENGINE_INC) -std=c++11 -DENGINE_TEST=$(ENGINE_TEST)
-
+CXXFLAGS:=-I../src -DENGINE_TEST=$(ENGINE_TEST) $(CXXFLAGS)
 SRC=$(wildcard test_*.cc)
 TST=$(subst .cc,,$(SRC))