diff --git a/board/bf533-stamp/bf533-stamp.h b/board/bf533-stamp/bf533-stamp.h
index 3b0d620b3c..ebd39c7737 100644
--- a/board/bf533-stamp/bf533-stamp.h
+++ b/board/bf533-stamp/bf533-stamp.h
@@ -34,9 +34,6 @@ extern volatile unsigned long *ambctl0;
 extern volatile unsigned long *ambctl1;
 extern volatile unsigned long *amgctl;
 
-extern unsigned long pll_div_fact;
-extern void serial_setbrg(void);
-
 /* Definitions used in  Compact Flash Boot support */
 #define FIO_EDGE_CF_BITS	0x0000
 #define FIO_POLAR_CF_BITS	0x0000