diff --git a/cpu/msp430/Makefile.msp430 b/cpu/msp430/Makefile.msp430
index 5d54c0527..620401b6c 100644
--- a/cpu/msp430/Makefile.msp430
+++ b/cpu/msp430/Makefile.msp430
@@ -1,4 +1,4 @@
-# $Id: Makefile.msp430,v 1.14 2007/03/23 16:22:26 nifi Exp $
+# $Id: Makefile.msp430,v 1.15 2007/04/03 19:05:13 adamdunkels Exp $
 
 ifdef nodeid
 CFLAGS += -DNODEID=$(nodeid)
@@ -12,7 +12,7 @@ CONTIKI_CPU=$(CONTIKI)/cpu/msp430
 ### Define the source files we have in the MSP430 port
 
 MSP430     = msp430.c flash.c clock.c leds.c leds-arch.c \
-             watchdog.c lpm.c mtarch.c uart1.c
+             watchdog.c lpm.c mtarch.c uart1.c rtimer-arch.c
 UIPDRIVERS = me.c me_tabs.c slip.c crc16.c
 #UIPDRIVERS = me.c me_tabs.c crc16.c ppp/ahdlc.c ppp/ipcp.c ppp/lcp.c ppp/pap.c ppp/ppp.c ppp/ppp_process.c
 SYSAPPS    = codeprop-tmp.c