diff --git a/platform/avr-raven/Makefile.avr-raven b/platform/avr-raven/Makefile.avr-raven
index 23544ec03..79e78df38 100644
--- a/platform/avr-raven/Makefile.avr-raven
+++ b/platform/avr-raven/Makefile.avr-raven
@@ -1,3 +1,6 @@
+
+MODULES += core/net/ipv6 core/net/mac/sicslowmac
+
 CONTIKI_TARGET_DIRS = . apps net loader
 
 CONTIKI_CORE=contiki-raven-main
diff --git a/platform/avr-ravenusb/Makefile.avr-ravenusb b/platform/avr-ravenusb/Makefile.avr-ravenusb
index 23e3b6f6b..dfbd5627c 100644
--- a/platform/avr-ravenusb/Makefile.avr-ravenusb
+++ b/platform/avr-ravenusb/Makefile.avr-ravenusb
@@ -1,3 +1,5 @@
+MODULES += core/net/ipv6 core/net/mac/sicslowmac
+
 CONTIKI_TARGET_DIRS = . apps net loader dev/usb dev/serial
 CONTIKI_CORE=contiki-raven-main
 CONTIKI_TARGET_MAIN = ${CONTIKI_CORE}.o