diff --git a/platform/z1/Makefile.z1 b/platform/z1/Makefile.z1
index dbe29d6d6..a470e2516 100644
--- a/platform/z1/Makefile.z1
+++ b/platform/z1/Makefile.z1
@@ -1,6 +1,7 @@
-# $Id: Makefile.z1,v 1.3 2010/08/27 12:17:40 joxe Exp $
+# $Id: Makefile.z1,v 1.4 2010/11/07 08:40:24 enricmcalvo Exp $
 
 CFLAGS+=-Os -g
+CLEAN += *.z1 symbols.c symbols.h
 
 ARCH=msp430.c leds.c watchdog.c xmem.c \
      spix.c cc2420.c cc2420-aes.c cc2420-arch.c cc2420-arch-sfd.c\