diff --git a/kern/include/linux/sizes.h b/kern/include/linux/sizes.h
index fbde0bc..81a8d72 100644
--- a/kern/include/linux/sizes.h
+++ b/kern/include/linux/sizes.h
@@ -8,7 +8,7 @@
 #ifndef __LINUX_SIZES_H__
 #define __LINUX_SIZES_H__
 
-#include <linux/const.h>
+//#include <linux/const.h>
 
 #define SZ_1				0x00000001
 #define SZ_2				0x00000002
@@ -46,6 +46,7 @@
 #define SZ_1G				0x40000000
 #define SZ_2G				0x80000000
 
-#define SZ_4G				_AC(0x100000000, ULL)
+//#define SZ_4G				_AC(0x100000000, ULL)
+#define SZ_4G				0x100000000ULL
 
 #endif /* __LINUX_SIZES_H__ */