diff --git a/docker/shadowsocks-r/Dockerfile b/docker/shadowsocks-r/Dockerfile
index d01ad55..6740c37 100644
--- a/docker/shadowsocks-r/Dockerfile
+++ b/docker/shadowsocks-r/Dockerfile
@@ -13,7 +13,8 @@ RUN set -ex; \
     wget -O /tmp/shadowsocksr-3.2.2.tar.gz https://github.com/shadowsocksrr/shadowsocksr/archive/3.2.2.tar.gz; \
     tar zxf /tmp/shadowsocksr-3.2.2.tar.gz -C /tmp; \
     mv /tmp/shadowsocksr-3.2.2/shadowsocks /usr/local/; \
-    rm -fr /tmp/shadowsocksr-3.2.2;
+    rm -fr /tmp/shadowsocksr-3.2.2; \
+    rm -f /tmp/shadowsocksr-3.2.2.tar.gz;
 
 COPY ./config_sample.json /etc/shadowsocks-r/config.json
 VOLUME /etc/shadowsocks-r