diff --git a/plat/rockchip/rk3328/include/platform_def.h b/plat/rockchip/rk3328/include/platform_def.h
index 39d3c21..019f4e1 100644
--- a/plat/rockchip/rk3328/include/platform_def.h
+++ b/plat/rockchip/rk3328/include/platform_def.h
@@ -85,7 +85,7 @@
 /*******************************************************************************
  * Platform specific page table and MMU setup constants
  ******************************************************************************/
-#define ADDR_SPACE_SIZE		(1ull << 32)
+#define ADDR_SPACE_SIZE		(1ULL << 32)
 #define MAX_XLAT_TABLES		9
 #define MAX_MMAP_REGIONS	33