diff --git a/package/boot/uboot-envtools/files/lantiq b/package/boot/uboot-envtools/files/lantiq
index 9f7ec8cf26..a0e0d916be 100644
--- a/package/boot/uboot-envtools/files/lantiq
+++ b/package/boot/uboot-envtools/files/lantiq
@@ -26,6 +26,11 @@ BTHOMEHUBV3A)
 P2812HNUF1)
 	ubootenv_add_uci_config "/dev/mtd1" "0x0" "0x2000" "0x20000" "1"
 	;;
+WBMR300)
+	idx="$(find_mtd_index ubootconfig)"
+	[ -n "$idx" ] && \
+		ubootenv_add_uci_config "/dev/mtd$idx" "0x0" "0x2000" "0x1000" "2"
+	;;
 esac
 
 config_load ubootenv