diff --git a/contrib/init/systemd/docker.service b/contrib/init/systemd/docker.service
index 291c73487f..9b0ce63ebc 100644
--- a/contrib/init/systemd/docker.service
+++ b/contrib/init/systemd/docker.service
@@ -11,7 +11,6 @@ Type=notify
 # for containers run by docker
 ExecStart=/usr/bin/dockerd -H fd://
 ExecReload=/bin/kill -s HUP $MAINPID
-MountFlags=slave
 LimitNOFILE=1048576
 LimitNPROC=1048576
 LimitCORE=infinity