diff --git a/device/rockchip/common/releasetools.py b/device/rockchip/common/releasetools.py
index 83e75b9835..38399c8d7a 100755
--- a/device/rockchip/common/releasetools.py
+++ b/device/rockchip/common/releasetools.py
@@ -134,8 +134,8 @@ def IncrementalOTA_InstallEnd(info):
     InstallTrust(trust_target, info.target_zip, info)
   else:
     print "trust unchanged; skipping"
-
- try:
+  
+  try:
     loader_uboot_target = info.target_zip.read("uboot.img")
   except KeyError:
     loader_uboot_target = None