diff --git a/Makefile b/Makefile
index f2a219c648fb92e355f3f081b5d3cdcd14a79cc6..afd5ec2f2d1b30c7998a0b936fc2b874da06ff29 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-DEVICE     = atxmega256a3u
+DEVICE     = atxmega128a3u
 PROGRAMMER = -c avrispmkII
 OBJECTS    = main.o clock.o debug.o bus.o status.o utils.o messages.o orders.o thermometer_cold.o thermometer_hot.o median_filter.o leds.o main_timer.o
 PORT		= usb