diff --git a/Dockerfile b/Dockerfile
index 690e12a..bcdcbc3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,4 +2,4 @@ FROM ghcr.io/pytorch/torchx:0.7.0
 
 COPY notebooks/mnist.py /opt/mnist.py
 
-RUN chmod -R +x /opt
\ No newline at end of file
+RUN chmod +x /opt/mnist.py
\ No newline at end of file