diff --git a/zh-cn/device-dev/porting/porting-smallchip-prepare-building.md b/zh-cn/device-dev/porting/porting-smallchip-prepare-building.md
index 629dc43816350efb5878b0952ea2a0efb8f11f98..2cb0437484d41d372caf08c437a5db7f6919d058 100644
--- a/zh-cn/device-dev/porting/porting-smallchip-prepare-building.md
+++ b/zh-cn/device-dev/porting/porting-smallchip-prepare-building.md
@@ -141,4 +141,4 @@ sudo apt-get install gcc-arm-linux-gnueabi
 
 4. 编译调试
 
-   在开发板目录下执行`hb set`和`hb build`即可启动芯片解决方案的编译，编译框架会以开发板下的BUILD.gn为入口启动编译。
+   在开发板目录下执行`hb set`和`hb build`即可启动芯片解决方案的编译，编译框架会以开发板下的`BUILD.gn`为入口启动编译。