diff --git a/configs/atmel_sama5d27_som1_ek_mmc_dev_defconfig b/configs/atmel_sama5d27_som1_ek_mmc_dev_defconfig
index 9985b64727..1ae4b853da 100644
--- a/configs/atmel_sama5d27_som1_ek_mmc_dev_defconfig
+++ b/configs/atmel_sama5d27_som1_ek_mmc_dev_defconfig
@@ -67,6 +67,7 @@ BR2_PACKAGE_HTOP=y
 BR2_PACKAGE_VIM=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="120M"
 BR2_TARGET_AT91BOOTSTRAP3=y
 BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_GIT=y
 BR2_TARGET_AT91BOOTSTRAP3_CUSTOM_REPO_URL="https://github.com/linux4sam/at91bootstrap.git"