diff --git a/makerom/Makefile b/makerom/Makefile
index d15d60f..e68a81c 100644
--- a/makerom/Makefile
+++ b/makerom/Makefile
@@ -5,7 +5,7 @@ OBJS = $(foreach dir,$(SRC_DIR),$(subst .c,.o,$(wildcard $(dir)/*.c)))
 # Compiler Settings
 LIBS = -static-libgcc
 CXXFLAGS = -I.
-CFLAGS = --std=c99 -Wall -Wno-unused-but-set-variable -Wno-unused-value -I. $(MAKEROM_BUILD_FLAGS)
+CFLAGS = --std=c99 -O2 -flto -Wall -Wno-unused-but-set-variable -Wno-unused-value -I. $(MAKEROM_BUILD_FLAGS)
 CC = gcc
 CXX = g++