diff --git a/rk356x/parameter-buildroot-fit.txt b/rk356x/parameter-buildroot-fit.txt
index 17d6da3..4defd4d 100644
--- a/rk356x/parameter-buildroot-fit.txt
+++ b/rk356x/parameter-buildroot-fit.txt
@@ -8,5 +8,5 @@ MACHINE: 0xffffffff
 CHECK_MASK: 0x80
 PWR_HLD: 0,0,A,0,1
 TYPE: GPT
-CMDLINE: mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(misc),0x00010000@0x00008000(boot),0x00010000@0x00018000(recovery),0x00010000@0x00028000(backup),0x00c00000@0x00038000(rootfs),0x00040000@0x00c38000(oem),-@0x00c78000(userdata:grow)
+CMDLINE: mtdparts=rk29xxnand:0x00002000@0x00004000(uboot),0x00002000@0x00006000(misc),0x00020000@0x00008000(boot),0x00020000@0x00028000(recovery),0x00010000@0x00048000(backup),0x00c00000@0x00058000(rootfs),0x00040000@0x00c58000(oem),-@0x00c98000(userdata:grow)
 uuid:rootfs=614e0000-0000-4b53-8000-1d28000054a9