diff --git a/configs/pengwyn_defconfig b/configs/pengwyn_defconfig
index 973f3cd..6b30c7a 100644
--- a/configs/pengwyn_defconfig
+++ b/configs/pengwyn_defconfig
@@ -46,6 +46,7 @@
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_MTDPARTS=y
 CONFIG_CMD_DIAG=y
 CONFIG_ISO_PARTITION=y
 CONFIG_EFI_PARTITION=y