diff --git a/arch/blackfin/mach-bf533/boards/ip0x.c b/arch/blackfin/mach-bf533/boards/ip0x.c
index 48cfbf816b47..8ec42ba35b9e 100644
--- a/arch/blackfin/mach-bf533/boards/ip0x.c
+++ b/arch/blackfin/mach-bf533/boards/ip0x.c
@@ -20,6 +20,7 @@
 #endif
 #include <asm/irq.h>
 #include <asm/bfin5xx_spi.h>
+#include <asm/portmux.h>
 
 /*
  * Name the Board for the /proc/cpuinfo