diff --git a/avr/Makefile b/avr/Makefile
index e368e72..46b910a 100644
--- a/avr/Makefile
+++ b/avr/Makefile
@@ -7,8 +7,9 @@ HEADER_SUBDIR	= tabby
 CROSS		= avr-
 
 CC		= $(CROSS)gcc
-CFLAGS		= $(CGFLAGS) -Wall -Os -mmcu=atmega2560 -I$(INCLUDE_PATH) \
-		  -DF_CPU=$(CLOCK_SPEED) -DUSE_2X
+CFLAGS		= $(CGFLAGS) -Wall -Os -mmcu=atmega2560 \
+		  -fdata-sections -ffunction-sections -Wl,--gc-sections \
+		  -I$(INCLUDE_PATH) -DF_CPU=$(CLOCK_SPEED) -DUSE_2X
 LDFLAGS		=
 
 OBJCOPY		= $(CROSS)objcopy