diff --git a/BUILD.md b/BUILD.md
index 0da80d57..9c845215 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -43,7 +43,7 @@ Install the required packages from your package manager.
 sudo apt install ffmpeg libsdl2-2.0.0
 
 # client build dependencies
-sudo apt install make gcc pkg-config meson \
+sudo apt install make gcc pkg-config meson ninja-build \
                  libavcodec-dev libavformat-dev libavutil-dev \
                  libsdl2-dev