diff --git a/Makefile b/Makefile
index 914c106..4b8d834 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@ override LDFLAGS =
 CC = avr-gcc
 OBJCOPY = avr-objcopy
 OBJDUMP = avr-objdump
+SIZE = avr-size
 AVRDUDE_ARGS =
 
 ifdef BOARD
@@ -31,6 +32,7 @@ deps.mk: *.c drivers/*.c
 
 %.elf: %.o
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+	$(SIZE) $@
 
 %.lst: %.elf
 	$(OBJDUMP) -h -S $< > $@