diff --git a/Dockerfile b/Dockerfile
index 9fd0fe5..8f3d350 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -33,6 +33,7 @@ RUN set -eux; \
       lsb-release \
       wget \
       xz-utils \
+      xrandr \
       git \
       build-essential \
       pkg-config \