diff --git a/config/Config-images.in b/config/Config-images.in
index 6f2f926432..5222065b04 100644
--- a/config/Config-images.in
+++ b/config/Config-images.in
@@ -300,6 +300,7 @@ menu "Target Images"
 	config TARGET_ROOTFS_PARTSIZE
 		int "Root filesystem partition size (in MiB)"
 		depends on USES_ROOTFS_PART || TARGET_ROOTFS_EXT4FS
+		default 448 if TARGET_mediatek
 		default 104
 		help
 		  Select the root filesystem partition size.