diff --git a/packages/bsp/common/usr/sbin/nand-sata-install b/packages/bsp/common/usr/sbin/nand-sata-install
index c8b60add2..217e5d166 100755
--- a/packages/bsp/common/usr/sbin/nand-sata-install
+++ b/packages/bsp/common/usr/sbin/nand-sata-install
@@ -310,7 +310,7 @@ create_armbian()
 	sync
 
 	umount ${TempDir}/rootfs
-	[[ $1 != "spi" ]] && unmount ${TempDir}/bootfs
+	[[ $1 != "spi" ]] && umount ${TempDir}/bootfs
 } # create_armbian