diff --git a/README-CN.md b/README-CN.md
index c1cda1e0..80128bf0 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -63,8 +63,9 @@ Neuron的层次结构图如下图所示：
 ### 编译
 
 ```shell
-$ git clone -- recursive https://github.com/emqx/neuron
+$ git clone https://github.com/emqx/neuron
 $ cd neuron
+$ git submodule update --init
 $ mkdir build && cd build
 $ cmake .. && make
 ```
diff --git a/README.md b/README.md
index c02d8681..27701423 100644
--- a/README.md
+++ b/README.md
@@ -62,8 +62,9 @@ The hierarchical layer diagram of Neuron is shown in the figure below:
 ## Build
 
 ```shell
-$ git clone -- recursive https://github.com/emqx/neuron
+$ git clone https://github.com/emqx/neuron
 $ cd neuron
+$ git submodule update --init
 $ mkdir build && cd build
 $ cmake .. && make
 ```