diff --git a/examples/redis/image/Dockerfile b/examples/redis/image/Dockerfile
index c770efd8a4b..e4a1588a53a 100644
--- a/examples/redis/image/Dockerfile
+++ b/examples/redis/image/Dockerfile
@@ -5,7 +5,6 @@ RUN apt-get install -yy -q python
 COPY redis-master.conf /redis-master/redis.conf
 COPY redis-slave.conf /redis-slave/redis.conf
 COPY run.sh /run.sh
-COPY sentinel.py /sentinel.py
 
 CMD [ "/run.sh" ]
 ENTRYPOINT [ "sh", "-c" ]