diff --git a/Dockerfile b/Dockerfile
index 755c925..6d12fc1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,6 @@ RUN pip install --no-cache-dir -r requirements.txt
 
 COPY . .
 
-CMD [ "ls", "-R"]
+RUN ls -R .
 
 ENTRYPOINT ["python", "main.py"]
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