diff --git a/target/linux/realtek/image/Makefile b/target/linux/realtek/image/Makefile
index 2b95035e9ea..457fb0c1095 100644
--- a/target/linux/realtek/image/Makefile
+++ b/target/linux/realtek/image/Makefile
@@ -14,6 +14,7 @@ DEVICE_VARS += \
         CAMEO_KERNEL_PART \
         CAMEO_KERNEL_PART_SIZE \
         CAMEO_ROOTFS_PART \
+        FLASH_ADDR \
         H3C_DEVICE_ID \
         H3C_PRODUCT_ID \
 	LINKSYS_HEADER \