diff --git a/target/linux/bcm27xx/base-files/lib/upgrade/keep.d/platform b/target/linux/bcm27xx/base-files/lib/upgrade/keep.d/platform
index 786796577d..22f09da43d 100644
--- a/target/linux/bcm27xx/base-files/lib/upgrade/keep.d/platform
+++ b/target/linux/bcm27xx/base-files/lib/upgrade/keep.d/platform
@@ -1 +1,2 @@
+/boot/cmdline.txt
 /boot/config.txt
diff --git a/target/linux/bcm27xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm27xx/base-files/lib/upgrade/platform.sh
index 811355b8f7..37c77edb34 100644
--- a/target/linux/bcm27xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/bcm27xx/base-files/lib/upgrade/platform.sh
@@ -92,7 +92,7 @@ platform_copy_config() {
 		mkdir -p /boot
 		[ -f /boot/kernel.img ] || mount -t vfat -o rw,noatime "/dev/$partdev" /boot
 		cp -af "$UPGRADE_BACKUP" "/boot/$BACKUP_FILE"
-		tar -C / -zxvf "$UPGRADE_BACKUP" boot/config.txt
+		tar -C / -zxvf "$UPGRADE_BACKUP" boot/cmdline.txt boot/config.txt
 		sync
 		unmount /boot
 	fi