diff --git a/post/lib_powerpc/twox.c b/post/lib_powerpc/twox.c
index eae4c57..5c36012 100644
--- a/post/lib_powerpc/twox.c
+++ b/post/lib_powerpc/twox.c
@@ -5,6 +5,7 @@
  */
 
 #include <common.h>
+#include <irq_func.h>
 
 /*
  * CPU test