diff --git a/include/asm-xtensa/io.h b/include/asm-xtensa/io.h
index 31ffc3f..0faa614 100644
--- a/include/asm-xtensa/io.h
+++ b/include/asm-xtensa/io.h
@@ -13,6 +13,7 @@
 
 #ifdef __KERNEL__
 #include <asm/byteorder.h>
+#include <asm/page.h>
 
 #include <linux/types.h>