diff --git a/package/boot/uboot-envtools/files/ar71xx b/package/boot/uboot-envtools/files/ar71xx
index f660883cf6..fb3d3e9f69 100644
--- a/package/boot/uboot-envtools/files/ar71xx
+++ b/package/boot/uboot-envtools/files/ar71xx
@@ -21,6 +21,7 @@ hornet-ub | \
 hornet-ub-x2 | \
 mr600 | \
 mr600v2 | \
+mr900 | \
 om5p | \
 tube2h | \
 wndr3700)