diff --git a/Documentation/BuildInstructionsLadybird.md b/Documentation/BuildInstructionsLadybird.md
index 59592e71ef8..e3105c1d373 100644
--- a/Documentation/BuildInstructionsLadybird.md
+++ b/Documentation/BuildInstructionsLadybird.md
@@ -13,7 +13,7 @@ NOTE: In all of the below lists of packages, the Qt6 multimedia package is not n
 ### Debian/Ubuntu:
 
 ```bash
-sudo apt install autoconf autoconf-archive automake build-essential ccache cmake curl fonts-liberation2 git libavcodec-dev libgl1-mesa-dev nasm ninja-build qt6-base-dev qt6-tools-dev-tools qt6-wayland tar unzip zip
+sudo apt install autoconf autoconf-archive automake build-essential ccache cmake curl fonts-liberation2 git libavcodec-dev libgl1-mesa-dev nasm ninja-build pkg-config qt6-base-dev qt6-tools-dev-tools qt6-wayland tar unzip zip
 ```
 
 #### CMake 3.25 or newer: