From 6ce706c432b2fc723e81efeda98bb546edfb5534 Mon Sep 17 00:00:00 2001
From: Luo Tao <luotao02@baidu.com>
Date: Fri, 2 Dec 2016 14:01:44 +0800
Subject: [PATCH] follow comments

---
 doc_cn/howto/build_docker_image.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc_cn/howto/build_docker_image.rst b/doc_cn/howto/build_docker_image.rst
index e8b2a044881..c23d26babe8 100644
--- a/doc_cn/howto/build_docker_image.rst
+++ b/doc_cn/howto/build_docker_image.rst
@@ -20,7 +20,7 @@ PaddlePaddle的Docker Image构建源码放置在 ``${源码根目录}/paddle/scr
     cd ${源码根目录}/paddle/scripts/docker/
     docker build --build-arg LOWEST_DL_SPEED=50K \
                  --build-arg WITH_GPU=ON \
-                 --tag  paddle_gpu:latest
+                 --tag  paddle_gpu:latest .
 
 其中，``--build-arg`` 传入的配置参数包括:
 
-- 
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