diff --git a/msb-430-common/board_init.c b/msb-430-common/board_init.c
index 4673600445..c9037cb521 100644
--- a/msb-430-common/board_init.c
+++ b/msb-430-common/board_init.c
@@ -3,6 +3,7 @@
 #include "kernel_intern.h"
 #include "msp430.h"
 #include "debug.h"
+#include <msb430-uart1.h>
 
 volatile static uint32_t __msp430_cpu_speed = MSP430_INITIAL_CPU_SPEED;
 
diff --git a/msb-430/include/board.h b/msb-430/include/board.h
index 18d4a04721..56c24a5461 100644
--- a/msb-430/include/board.h
+++ b/msb-430/include/board.h
@@ -49,7 +49,7 @@ and the mailinglist (subscription via web site)
  */
 
 //MSB430 core
-#define MSP430_INITIAL_CPU_SPEED    7372800uL
+#define MSP430_INITIAL_CPU_SPEED 2457600uL
 #define MSP430_HAS_DCOR             1
 #define MSP430_HAS_EXTERNAL_CRYSTAL 0