diff --git a/sdl/Makefile.sdl1 b/sdl/Makefile.sdl1
index d6a81b1..681a31a 100644
--- a/sdl/Makefile.sdl1
+++ b/sdl/Makefile.sdl1
@@ -28,7 +28,7 @@
 NAME	  = gen_sdl
 
 CC        = gcc
-CFLAGS    = `sdl-config --cflags` -march=i686 -O6 -fomit-frame-pointer -Wall -Wno-strict-aliasing -ansi -std=c99 -pedantic-errors
+CFLAGS    = `sdl-config --cflags` -march=native -O6 -fomit-frame-pointer -Wall -Wno-strict-aliasing -ansi -std=c99 -pedantic-errors
 #-g -ggdb -pg
 #-fomit-frame-pointer
 #LDFLAGS   = -pg