diff --git a/makefile b/makefile
index b6f02e5..6384aaf 100644
--- a/makefile
+++ b/makefile
@@ -1,7 +1,7 @@
 SRC = src/settings.h src/fft.c src/utils_curses.c src/music_visualizer.c src/utils_mpd.c src/mt/mt19937ar.c src/beat_track.c src/invaders.c
 LOCPATH = ./bin
 INSTALLPATH = /usr/local
-CFLAGS = -O3
+CFLAGS = -O2
 LFLAGS =  -lm -lncurses -ldl -ltinfo #-lasound
 DEBFLAGS = -g -Wall
 NAME = mvc