diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h
index cad4eee599fbf824c33b582936ff9f1502f881c0..2b569ad984bdfc8c3ddb187d4b08a60640256722 100644
--- a/arch/powerpc/boot/ops.h
+++ b/arch/powerpc/boot/ops.h
@@ -11,6 +11,7 @@
 #ifndef _PPC_BOOT_OPS_H_
 #define _PPC_BOOT_OPS_H_
 
+#include <stddef.h>
 #include "types.h"
 
 #define	COMMAND_LINE_SIZE	512