diff --git a/Makefile b/Makefile
index d88b1a1..43dbcee 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 
 CC=gcc
 O=2
-CFLAGS=-lcsfml-window -lcsfml-system -lcsfml-graphics
+CFLAGS=-D_REENTRANT -lSDL2
 PREFIX=$(HOME)/.local
 
 all: ls7emulator