diff --git a/docs/development_environment.md b/docs/development_environment.md
index 363d018c..f2290e12 100644
--- a/docs/development_environment.md
+++ b/docs/development_environment.md
@@ -17,7 +17,7 @@ $ sudo apt-get install python3-pip python3-dev python3-venv
 In order to run `script/setup` below you will need some more dependencies.
 
 ```bash
-$ sudo apt-get install autoconf libssl-dev libxml2-dev libxslt1-dev libjpeg-dev libffi-dev libudev-dev zlib1g-dev
+$ sudo apt-get install autoconf libssl-dev libxml2-dev libxslt1-dev libjpeg-dev libffi-dev libudev-dev zlib1g-dev pkg-config
 $ sudo apt-get install -y libavformat-dev libavcodec-dev libavdevice-dev libavutil-dev libswscale-dev libavresample-dev libavfilter-dev
 ```