diff --git a/doc/demo/quick_start/index_en.md b/doc/demo/quick_start/index_en.md
index 659485d9be1b6a3e9759a2fd040cb09d1f2a3005..c2d6f3a6b66f5265f923d5d699c4ddec0ff9236c 100644
--- a/doc/demo/quick_start/index_en.md
+++ b/doc/demo/quick_start/index_en.md
@@ -164,7 +164,7 @@ You will describe four kinds of network architectures in this section.
![](./PipelineNetwork_en.jpg)
First, you will build a logistic regression model. Later, you will also get chance to build other more powerful network architectures.
-For more detailed documentation, you could refer to: Layer documentation。All configuration files are in `demo/quick_start` directory.
+For more detailed documentation, you could refer to: layer documentation. All configuration files are in `demo/quick_start` directory.
### Logistic Regression
The architecture is illustrated in the following picture: