diff --git a/board/netta/flash.c b/board/netta/flash.c
index 45e6b30..565fd67 100644
--- a/board/netta/flash.c
+++ b/board/netta/flash.c
@@ -69,13 +69,13 @@
 
 	flash_protect ( FLAG_PROTECT_SET,
 			CONFIG_ENV_ADDR,
-			CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
+			CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
 			&flash_info[0]);
 
 #ifdef CONFIG_ENV_ADDR_REDUND
 	flash_protect ( FLAG_PROTECT_SET,
 			CONFIG_ENV_ADDR_REDUND,
-			CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SIZE_REDUND - 1,
+			CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
 			&flash_info[0]);
 #endif