diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6afd63e..cddf7cc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,8 +2,8 @@ project (ndhcp)
 
 cmake_minimum_required (VERSION 2.6)
 
-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s -std=gnu99 -pedantic -Wall -lrt -lcap -D_GNU_SOURCE -DHAVE_CLEARENV -DLINUX")
-set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -s -std=gnu99 -pedantic -Wall -lrt -lcap -D_GNU_SOURCE -DHAVE_CLEARENV -DLINUX")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s -std=gnu99 -pedantic -Wall -Wno-format-extra-args -Wno-format-zero-length -Wformat-nonliteral -Wformat-security -lrt -lcap -D_GNU_SOURCE -DHAVE_CLEARENV -DLINUX")
+set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -s -std=gnu99 -pedantic -Wall -Wno-format-extra-args -Wno-format-zero-length -Wformat-nonliteral -Wformat-security -lrt -lcap -D_GNU_SOURCE -DHAVE_CLEARENV -DLINUX")
 
 include_directories(
     "${PROJECT_SOURCE_DIR}/ncmlib"