diff --git a/Makefile b/Makefile
index 4f824e0..abee769 100644
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,7 @@ main.elf: $(OBJECTS)
 grbl.hex: main.elf
 	rm -f grbl.hex
 	avr-objcopy -j .text -j .data -O ihex main.elf grbl.hex
+	avr-objdump -h main.elf | grep .bss | ruby -e 'puts "\n\n--- Requires %s bytes of SRAM" % STDIN.read.match(/0[0-9a-f]+\s/)[0].to_i(16)'
 	avr-size *.hex *.elf *.o
 # If you have an EEPROM section, you must also create a hex file for the
 # EEPROM and add it to the "flash" target.