diff --git a/target/linux/bcm53xx/image/Makefile b/target/linux/bcm53xx/image/Makefile
index 576de80709..9dd2a9c998 100644
--- a/target/linux/bcm53xx/image/Makefile
+++ b/target/linux/bcm53xx/image/Makefile
@@ -11,6 +11,8 @@ define Image/Prepare
 	rm -f $(KDIR)/fs_mark
 	echo -ne '\xde\xad\xc0\xde' > $(KDIR)/fs_mark
 	$(call prepare_generic_squashfs,$(KDIR)/fs_mark)
+
+	$(CP) ./ubinize.cfg $(KDIR)
 endef
 
 define trx2ndpart/serial
@@ -73,6 +75,8 @@ endef
 
 # $(1): filesystem type (e.g. squashfs, initramfs).
 define Image/Build
+	( cd $(KDIR); $(STAGING_DIR_HOST)/bin/ubinize -p 128KiB -m 2048 -o $(KDIR)/root-block-0x20000-min-0x800.ubi ubinize.cfg )
+
 	$(call Image/Build/AsusTrx,$(1),bcm47081-asus-rt-n18u,serial,RT-N18U)
 
 	$(call Image/Build/Chk,$(1),bcm4708-netgear-r6250,serial,U12H245T00_NETGEAR,1)
diff --git a/target/linux/bcm53xx/image/ubinize.cfg b/target/linux/bcm53xx/image/ubinize.cfg
new file mode 100644
index 0000000000..a4f2f09d9e
--- /dev/null
+++ b/target/linux/bcm53xx/image/ubinize.cfg
@@ -0,0 +1,24 @@
+[rootfs]
+# Volume mode (other option is static)
+mode=ubi
+# Source image
+image=root.squashfs
+# Volume ID in UBI image
+vol_id=0
+# Allow for dynamic resize
+vol_type=dynamic
+# Volume name
+vol_name=rootfs
+
+[rootfs_data]
+# Volume mode (other option is static)
+mode=ubi
+# Volume ID in UBI image
+vol_id=1
+# Allow for dynamic resize
+vol_type=dynamic
+# Volume name
+vol_name=rootfs_data
+# Autoresize volume at first mount
+vol_flags=autoresize
+vol_size=1MiB