diff --git a/Dockerfile b/Dockerfile
index 8b18f68..67ee844 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -17,6 +17,7 @@ WORKDIR /app
 
 RUN apt-get update
 RUN apt-get -y install libsdl2-dev
+RUN apt-get -y install xorg-dev
 
 COPY ./pico8 ./pico8
 # RUN echo "chmoding pico8"