diff --git a/configs/czechlight_clearfog_defconfig b/configs/czechlight_clearfog_defconfig
index 62cba2d..2b18165 100644
--- a/configs/czechlight_clearfog_defconfig
+++ b/configs/czechlight_clearfog_defconfig
@@ -78,7 +78,7 @@
 BR2_TARGET_ROOTFS_CPIO_UIMAGE=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_TARGET_ROOTFS_EXT2_SIZE="333M"
+BR2_TARGET_ROOTFS_EXT2_SIZE="400M"
 BR2_TARGET_ROOTFS_TAR_XZ=y
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y