diff --git a/configs/yosemite_defconfig b/configs/yosemite_defconfig
index 0d15583..c77cd22 100644
--- a/configs/yosemite_defconfig
+++ b/configs/yosemite_defconfig
@@ -1,4 +1,5 @@
 CONFIG_PPC=y
+# CONFIG_MMC is not set
 CONFIG_4xx=y
 CONFIG_TARGET_YOSEMITE=y
 CONFIG_OF_BOARD_SETUP=y