diff --git a/examples/sky-ip/Makefile b/examples/sky-ip/Makefile
index 5ee10fcd8..348c563dc 100644
--- a/examples/sky-ip/Makefile
+++ b/examples/sky-ip/Makefile
@@ -1,9 +1,9 @@
 CONTIKI_PROJECT = sky-webserver
 all: sky-webserver sky-telnet-server telnet-tweet 
-PLATFORM_BUILD=1 # This is needed to avoid the shell to include the httpd-cfs version of the websrerver
+PLATFORM_BUILD=1 # This is needed to avoid the shell to include the httpd-cfs version of the webserver
 APPS = webserver twitter telnetd
-CFLAGS = -DWITH_UIP=1 -I. #-DWITH_NULLMAC=1
-DEFINES=MAC_DRIVER=cxmac_driver,MAC_CHANNEL_CHECK_RATE=8
+CFLAGS = -DWITH_UIP=1 -I.
+DEFINES=NETSTACK_CONF_RDC=cxmac_driver,NETSTACK_CONF_RDC_CHANNEL_CHECK_RATE=8
 
 # The webserver application normally contains a built-in file system and support
 # for server-side includes.