diff --git a/makefile b/makefile
index a363c12..462e063 100644
--- a/makefile
+++ b/makefile
@@ -380,7 +380,7 @@ CFLAGS += -g -D_DEBUG
 STRIP = $(NOECHO) $(NOOP)
 SYMBOLCP = $(NOECHO) $(NOOP)
 else
-CFLAGS += -Os
+CFLAGS += -O3
 STRIP += ./$(EXENAME)_$(ARCHNAME)$(EXENAME2)
 SYMBOLCP = cp ./$(EXENAME)_$(ARCHNAME)$(EXENAME2) ./DEBUG_$(EXENAME)_$(ARCHNAME)$(EXENAME2)
 endif