diff --git a/Dockerfile b/Dockerfile
index fb53b41..c00fb8f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,7 @@ RUN apt-get update && apt-get install -y \
     wget \
     unzip \
     git \
+    tree \
     && rm -rf /var/lib/apt/lists/*
 
 # Set up Android SDK