diff --git a/Makefile b/Makefile
index d8e3e72..cc447e0 100644
--- a/Makefile
+++ b/Makefile
@@ -26,11 +26,11 @@ INCLUDEPATH += -IFATFS -IFATFS/shimatta_sdio_driver
 CC=arm-none-eabi-gcc
 OBJCOPY=arm-none-eabi-objcopy
 OBJDUMP=arm-none-eabi-objdump
-
+SIZE=arm-none-eabi-size
 
 LFLAGS = -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork 
 LFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 --disable-newlib-supplied-syscalls -nostartfiles
-LFLAGS += -Tstm32f407vgt6_flash.ld -Wl,-Map=$(mapfile).map
+LFLAGS += -Tstm32f407vgt6_flash.ld -Wl,-Map=$(mapfile).map -Wl,--gc-sections
 
 CFLAGS = -c -fmessage-length=0 -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
 CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 -nostartfiles
@@ -54,6 +54,7 @@ default: $(target).elf
 #Linking
 $(target).elf: $(OBJ) $(ASOBJ)
 	$(CC) $(LFLAGS) $(LIBRARYPATH) -o $@ $^ $(LIBRARIES)
+	$(SIZE) $@	
 
 #Compiling
 %.c.o: %.c