diff --git a/configs/M5253DEMO_defconfig b/configs/M5253DEMO_defconfig
index 79382eb..a73aca0 100644
--- a/configs/M5253DEMO_defconfig
+++ b/configs/M5253DEMO_defconfig
@@ -25,6 +25,7 @@
 CONFIG_CMD_FAT=y
 CONFIG_MAC_PARTITION=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+# CONFIG_BLOCK_CACHE is not set
 CONFIG_SYS_IDE_MAXBUS=1
 CONFIG_SYS_ATA_STRIDE=4
 CONFIG_SYS_ATA_DATA_OFFSET=0xA0