diff --git a/configs/pcm030_defconfig b/configs/pcm030_defconfig
index d3181c8..fdb0d1b 100644
--- a/configs/pcm030_defconfig
+++ b/configs/pcm030_defconfig
@@ -1,4 +1,5 @@
 CONFIG_PPC=y
+# CONFIG_MMC is not set
 CONFIG_MPC5xxx=y
 CONFIG_TARGET_PCM030=y
 CONFIG_OF_BOARD_SETUP=y