diff --git a/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh b/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
index 049f8eeb8c8..e2a82fe87c3 100755
--- a/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mvebu/cortexa9/base-files/lib/upgrade/platform.sh
@@ -6,7 +6,6 @@
 RAMFS_COPY_BIN='fw_printenv fw_setenv seq strings'
 RAMFS_COPY_DATA='/etc/fw_env.config /var/lock/fw_printenv.lock'
 
-PART_NAME=firmware
 REQUIRE_IMAGE_METADATA=1
 
 platform_check_image() {
@@ -74,6 +73,10 @@ platform_do_upgrade() {
 		esac
 		default_do_upgrade "$1"
 		;;
+	iptime,nas1dual)
+		PART_NAME=firmware
+		;;
+
 	linksys,wrt1200ac|\
 	linksys,wrt1900ac-v1|\
 	linksys,wrt1900ac-v2|\