diff --git a/srcs/open_dhcp/CMakeLists.txt b/srcs/open_dhcp/CMakeLists.txt
index 6b34cbc..c4a12c0 100644
--- a/srcs/open_dhcp/CMakeLists.txt
+++ b/srcs/open_dhcp/CMakeLists.txt
@@ -6,7 +6,7 @@ INCLUDE_DIRECTORIES(../libs/include ./)
 
 FILE(GLOB DHCPD_HEADS ./*.h)
 
-ADD_DEFINITIONS(-Wno-format-overflow)
+ADD_DEFINITIONS(-Wno-format-overflow -std=c++11)
 #ADD_EXECUTABLE(${PROJECT_TARGET} opendhcpd.cpp ${DHCPD_HEADS})
 ADD_LIBRARY(${DHCPD_PROJECT_TARGET} opendhcpd.cpp ${DHCPD_HEADS})