diff --git a/cpu/cc253x/dev/uart-intr.c b/cpu/cc253x/dev/uart-intr.c
index 89b7c8fb1..e0ad6f57e 100644
--- a/cpu/cc253x/dev/uart-intr.c
+++ b/cpu/cc253x/dev/uart-intr.c
@@ -15,7 +15,6 @@
 #include "dev/uart0.h"
 #include "dev/uart1.h"
 #include "sys/energest.h"
-#include  "dev/leds.h"
 
 #if UART0_ENABLE
 static int (* uart0_input_handler)(unsigned char c);
@@ -42,7 +41,6 @@ void
 uart0_rx_isr(void) __interrupt(URX0_VECTOR)
 {
   ENERGEST_ON(ENERGEST_TYPE_IRQ);
-  leds_toggle(LEDS_YELLOW);
   URX0IF = 0;
   if(uart0_input_handler != NULL) {
     uart0_input_handler(U0DBUF);
diff --git a/examples/cc2530dk/udp-ipv6/server.c b/examples/cc2530dk/udp-ipv6/server.c
index 21cfc62a9..ae8c3d65c 100644
--- a/examples/cc2530dk/udp-ipv6/server.c
+++ b/examples/cc2530dk/udp-ipv6/server.c
@@ -53,7 +53,7 @@ static uint16_t len;
 #define SERVER_REPLY          1
 
 /* Should we act as RPL root? */
-#define SERVER_RPL_ROOT       1
+#define SERVER_RPL_ROOT       0
 
 #if SERVER_RPL_ROOT
 static uip_ipaddr_t ipaddr;