diff --git a/target/linux/ath79/image/common-mikrotik.mk b/target/linux/ath79/image/common-mikrotik.mk
index c21800011b..9ac89fdcb1 100644
--- a/target/linux/ath79/image/common-mikrotik.mk
+++ b/target/linux/ath79/image/common-mikrotik.mk
@@ -4,3 +4,17 @@ define Device/mikrotik
 	KERNEL := kernel-bin | append-dtb | lzma | loader-kernel
 	KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | loader-kernel
 endef
+
+define Device/mikrotik_nor
+  $(Device/mikrotik)
+  IMAGE/sysupgrade.bin := append-kernel | kernel2minor -s 1024 -e | \
+	pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
+	append-metadata | check-size
+endef
+
+define Device/mikrotik_nand
+  $(Device/mikrotik)
+  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
+	sysupgrade-tar kernel=$$$$@ | append-metadata
+  DEVICE_PACKAGES := nand-utils
+endef
diff --git a/target/linux/ath79/image/mikrotik.mk b/target/linux/ath79/image/mikrotik.mk
index b0bd05a81c..a3506bd514 100644
--- a/target/linux/ath79/image/mikrotik.mk
+++ b/target/linux/ath79/image/mikrotik.mk
@@ -1,36 +1,28 @@
 include ./common-mikrotik.mk
 
 define Device/mikrotik_routerboard-493g
-  $(Device/mikrotik)
+  $(Device/mikrotik_nand)
   SOC := ar7161
   DEVICE_MODEL := RouterBOARD 493G
-  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
-	sysupgrade-tar kernel=$$$$@ | append-metadata
-  DEVICE_PACKAGES += kmod-usb-ohci kmod-usb2 nand-utils
+  DEVICE_PACKAGES += kmod-usb-ohci kmod-usb2
   SUPPORTED_DEVICES += rb-493g
 endef
 TARGET_DEVICES += mikrotik_routerboard-493g
 
 define Device/mikrotik_routerboard-922uags-5hpacd
-  $(Device/mikrotik)
+  $(Device/mikrotik_nand)
   SOC := qca9558
   DEVICE_MODEL := RouterBOARD 922UAGS-5HPacD
-  IMAGE/sysupgrade.bin = append-kernel | kernel2minor -s 2048 -e -c | \
-	sysupgrade-tar kernel=$$$$@ | append-metadata
-  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct \
-	kmod-usb2 nand-utils
+  DEVICE_PACKAGES += kmod-ath10k-ct ath10k-firmware-qca988x-ct kmod-usb2
   SUPPORTED_DEVICES += rb-922uags-5hpacd
 endef
 TARGET_DEVICES += mikrotik_routerboard-922uags-5hpacd
 
 define Device/mikrotik_routerboard-wap-g-5hact2hnd
-  $(Device/mikrotik)
+  $(Device/mikrotik_nor)
   SOC := qca9556
   DEVICE_MODEL := RouterBOARD wAP G-5HacT2HnD (wAP AC)
   IMAGE_SIZE := 16256k
-  IMAGE/sysupgrade.bin := append-kernel | kernel2minor -s 1024 -e | \
-	pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
-	append-metadata | check-size
   DEVICE_PACKAGES += kmod-ath10k-ct-smallbuffers ath10k-firmware-qca988x-ct
   SUPPORTED_DEVICES += rb-wapg-5hact2hnd
 endef