diff --git a/configs/xpedite537x_defconfig b/configs/xpedite537x_defconfig
index 5ababef..e38e1da 100644
--- a/configs/xpedite537x_defconfig
+++ b/configs/xpedite537x_defconfig
@@ -1,4 +1,5 @@
 CONFIG_PPC=y
+# CONFIG_MMC is not set
 CONFIG_MPC85xx=y
 CONFIG_TARGET_XPEDITE537X=y
 CONFIG_FIT=y