diff --git a/Makefile.am b/Makefile.am
index a595ea5..5eab03e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,4 +1,5 @@
 AUTOMAKE_OPTIONS = foreign subdir-objects -Wall
 bin_PROGRAMS = margen
 margen_SOURCES = src/main.c src/args.c src/bmp.c src/generator.c src/rand.c
+margen_CFLAGS = -Ofast -march=native -flto -funroll-loops -fprefetch-loop-arrays -fno-exceptions -fopenmp
 include_HEADERS = src/main.h src/args.h src/bmp.h src/generator.h src/rand.h src/config.h src/types.h
\ No newline at end of file