diff --git a/Dockerfile b/Dockerfile
index 1125f44..3f806d3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,4 +18,5 @@ RUN apt-get update &&  DEBIAN_FRONTEND="noninteractive" \
     unzip \
     libjpeg-turbo8-dev \
     libvncserver-dev \
-    lua5.3
\ No newline at end of file
+    lua5.3 \
+    tree
\ No newline at end of file