diff --git a/target/linux/ar71xx/image/ubinize-wndr4300.ini b/target/linux/ar71xx/image/ubinize-wndr4300.ini
index c95c5e4b1e..5bff906ae8 100644
--- a/target/linux/ar71xx/image/ubinize-wndr4300.ini
+++ b/target/linux/ar71xx/image/ubinize-wndr4300.ini
@@ -15,8 +15,6 @@ vol_name=rootfs
 [rootfs_data]
 # Volume mode (other option is static)
 mode=ubi
-# Source image
-image=jffs2.eof
 # Volume ID in UBI image
 vol_id=1
 # Allow for dynamic resize
@@ -25,3 +23,4 @@ vol_type=dynamic
 vol_name=rootfs_data
 # Autoresize volume at first mount
 vol_flags=autoresize
+vol_size=1MiB