diff --git a/target/linux/lantiq/image/ubinize-overlay.cfg b/target/linux/lantiq/image/ubinize-overlay.cfg
index ce8e5d97af..65f0f42c5b 100644
--- a/target/linux/lantiq/image/ubinize-overlay.cfg
+++ b/target/linux/lantiq/image/ubinize-overlay.cfg
@@ -19,3 +19,5 @@ vol_type=dynamic
 # Volume name
 vol_name=rootfs_data
 vol_size=1MiB
+# Autoresize volume at first mount
+vol_flags=autoresize