diff --git a/scripts/check_api_cn.sh b/scripts/check_api_cn.sh
index a986d39469024293436395fa681e239a680c79b1..5d7dfe193edfea07864e78e5ba8c089d5c8a5591 100644
--- a/scripts/check_api_cn.sh
+++ b/scripts/check_api_cn.sh
@@ -13,7 +13,9 @@ else
    pip install -U python/dist/paddlepaddle_gpu-0.0.0-cp27-cp27mu-linux_x86_64.whl 
 fi
 
+
 for files in `echo $git_files`;do
+  cd /FluidDoc
   grep "code-block" $files
   if [ $? -eq 0 ] ;then 
     echo $files|grep 'doc/fluid/api_cn/.*/.*.rst'