diff --git a/docs/en/camera.md b/docs/en/camera.md
index e5b533be..d91a382a 100644
--- a/docs/en/camera.md
+++ b/docs/en/camera.md
@@ -97,6 +97,8 @@ The obtained images can be viewed using [web_video_server](web_video_server.md).
 To program actions of the copter upon detection of [QR codes](https://en.wikipedia.org/wiki/QR_code) you can use the [pyZBar](https://pypi.org/project/pyzbar/). It should be installed using pip:
 
 ```bash
+sudo apt update
+sudo apt install libzbar0
 sudo pip install pyzbar
 ```
 
diff --git a/docs/ru/camera.md b/docs/ru/camera.md
index ee3bbfe5..ddc13db4 100644
--- a/docs/ru/camera.md
+++ b/docs/ru/camera.md
@@ -101,6 +101,8 @@ image_pub.publish(bridge.cv2_to_imgmsg(cv_image, 'bgr8'))
 Для программирования различных действий коптера при детектировании нужных [QR-кодов](https://ru.wikipedia.org/wiki/QR-код) можно использовать библиотеку [pyZBar](https://pypi.org/project/pyzbar/). Ее нужно установить в помощью pip:
 
 ```bash
+sudo apt update
+sudo apt install libzbar0
 sudo pip install pyzbar
 ```