diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6a8ef9e5..f6808dd8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,7 +70,7 @@ elseif(UNIX)
 	
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14 -D_GLIBCXX_USE_CXX11_ABI=0 \
 		-m32 -pipe -march=native -mtune=native \
-		-D_FORTIFY_SOURCE=2 -Wformat \
+		-Wformat \
 		-Wno-overloaded-virtual -Wno-missing-braces -Wno-format \
 		-Wno-write-strings -Wno-unknown-pragmas \
 		-Wno-uninitialized -Wno-reorder")