diff --git a/include/api_public.h b/include/api_public.h
index 5b0c09e..d3164f6 100644
--- a/include/api_public.h
+++ b/include/api_public.h
@@ -110,8 +110,8 @@
 	int			mr_no;	/* number of memory regions */
 };
 
-#undef CFG_64BIT_LBA
-#ifdef CFG_64BIT_LBA
+#undef CONFIG_SYS_64BIT_LBA
+#ifdef CONFIG_SYS_64BIT_LBA
 typedef	u_int64_t lbasize_t;
 #else
 typedef unsigned long lbasize_t;