diff --git a/cplusplus/level1_single_api/6_media/1_camera/camera_sample/README.md b/cplusplus/level1_single_api/6_media/1_camera/camera_sample/README.md
index 0703cdc2d8215b976ef96a96f3a4f64e8bbc3ad2..105eb0e302699af4379acd489a71499c41131553 100644
--- a/cplusplus/level1_single_api/6_media/1_camera/camera_sample/README.md
+++ b/cplusplus/level1_single_api/6_media/1_camera/camera_sample/README.md
@@ -38,6 +38,7 @@ camera l1 level sample，从sensor获取图像(实例为树莓派摄像头)，
 如下示例，$HOME/Ascend表示编译环境runtime标准形态安装包的安装路径，请根据实际情况替换。
 
 export NPU_HOST_LIB=$HOME/Ascend/runtime/lib64/stub/
+export NPU_HOST_INC=$HOME/Ascend/runtime/include/
 cd到sensor/sony_imx219目录，依次执行如下命令执行编译；imx477同理，cd到sensor/sony_imx477目录下进行编译
 ```
 mkdir build
@@ -63,7 +64,8 @@ make
 
 如下示例，$HOME/Ascend表示编译环境runtime标准形态安装包的安装路径，请根据实际情况替换。
 
-“export NPU_HOST_LIB=$HOME/Ascend/CANN-6.4/runtime/lib64/stub/aarch64”
+export NPU_HOST_LIB=$HOME/Ascend/CANN-6.4/runtime/lib64/stub/aarch64
+export NPU_HOST_INC=$HOME/Ascend/CANN-6.4/runtime/include/
 cd到sensor/sony_imx219目录，依次执行如下命令执行编译，imx477同理，cd到sensor/sony_imx477目录下进行编译。
 
  **编译器根据实际toolkit包安装位置自行调整** 。