diff --git a/configs/TQM5200S_HIGHBOOT_defconfig b/configs/TQM5200S_HIGHBOOT_defconfig
index ea022e5..b2f5e5e 100644
--- a/configs/TQM5200S_HIGHBOOT_defconfig
+++ b/configs/TQM5200S_HIGHBOOT_defconfig
@@ -17,6 +17,7 @@
 CONFIG_CMD_BSP=y
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
+CONFIG_CMD_DIAG=y
 CONFIG_MAC_PARTITION=y
 CONFIG_ISO_PARTITION=y
 # CONFIG_MMC is not set