diff --git a/conf/machine/include/rockchip.inc b/conf/machine/include/rockchip.inc
index 0877aac..5e57170 100644
--- a/conf/machine/include/rockchip.inc
+++ b/conf/machine/include/rockchip.inc
@@ -15,7 +15,7 @@ PREFERRED_PROVIDER_virtual/kernel = "linux-rockchip-3.0"
 
 KERNEL_IMAGETYPE = "Image"
 IMAGE_CLASSES += "rockchip-update-img"
-IMAGE_FSTYPES += "rockchip-update-img"
+IMAGE_FSTYPES += "ext4 rockchip-update-img"
 
 SERIAL_CONSOLES = "115200;ttyFIQ0"