diff --git a/bsp/simulator/rtconfig.h b/bsp/simulator/rtconfig.h
index 38ea44bee..9b9bae165 100644
--- a/bsp/simulator/rtconfig.h
+++ b/bsp/simulator/rtconfig.h
@@ -123,7 +123,6 @@
 /* DFS: uffs nand file system options */
 #define RT_USING_DFS_UFFS
 /* configuration for uffs, more to see dfs_uffs.h and uffs_config.h */
-/* use ecc soft, the uffs will do all the things about ecc */
 #define RT_CONFIG_UFFS_ECC_MODE  UFFS_ECC_HW_AUTO
 /* enable this ,you need provide a mark_badblock/check_block function */
 //#define RT_UFFS_USE_CHECK_MARK_FUNCITON