diff --git a/docs/getting-started-guides/coreos/units/docker.service b/docs/getting-started-guides/coreos/units/docker.service
index 2a2f8147f8c6d..47afb341af40a 100644
--- a/docs/getting-started-guides/coreos/units/docker.service
+++ b/docs/getting-started-guides/coreos/units/docker.service
@@ -5,7 +5,7 @@ Documentation=http://docs.docker.io
 
 [Service]
 ExecStartPre=/bin/mount --make-rprivate /
-ExecStart=/usr/bin/docker -d -s=btrfs -H fd:// -b cbr0 --iptables=false
+ExecStart=/usr/bin/docker -d -s=btrfs -H fd:// -b cbr0 --iptables=false --ip-masq=false
 
 [Install]
 WantedBy=multi-user.target