diff --git a/board/renesas/ulcb/ulcb.c b/board/renesas/ulcb/ulcb.c
index efbffa0..7ba1948 100644
--- a/board/renesas/ulcb/ulcb.c
+++ b/board/renesas/ulcb/ulcb.c
@@ -12,6 +12,7 @@
 #include <malloc.h>
 #include <netdev.h>
 #include <dm.h>
+#include <asm/global_data.h>
 #include <dm/platform_data/serial_sh.h>
 #include <asm/processor.h>
 #include <asm/mach-types.h>