diff --git a/repos/os/src/server/nic_router/README b/repos/os/src/server/nic_router/README
index c76baa0394..eae491da8c 100644
--- a/repos/os/src/server/nic_router/README
+++ b/repos/os/src/server/nic_router/README
@@ -899,7 +899,7 @@ following configuration:
 ! <policy label_prefix="virtnet_b" domain="virtnet_b" />
 ! <policy label_prefic="nic_drv"   domain="home_lan"  />
 !
-! <domain name="home_lan" interface="10.0.2.55/24" gateway="10.0.2.1/24">
+! <domain name="home_lan" interface="10.0.2.55/24" gateway="10.0.2.1">
 !    <ip dst="192.168.1.0/24" domain="virtnet_a"/>
 !    <ip dst="192.168.2.0/24" domain="virtnet_b"/>
 ! </domain>
@@ -939,7 +939,7 @@ internet. The router would have the following configuration:
 ! <policy label_prefix="virtnet_b" domain="virtnet_b" />
 ! <policy label_prefic="nic_drv"   domain="home_lan"  />
 !
-! <domain name="home_lan" interface="10.0.2.55/24" gateway="10.0.2.1/24">
+! <domain name="home_lan" interface="10.0.2.55/24" gateway="10.0.2.1">
 !    <nat domain="virtnet_a" tcp_ports="1000" udp_ports="1000">
 ! </domain>
 !