diff --git a/inventory/host_vars/buildhw-x86-05.iad2.fedoraproject.org b/inventory/host_vars/buildhw-x86-05.iad2.fedoraproject.org
index 450bf8283d..35c5a4f381 100644
--- a/inventory/host_vars/buildhw-x86-05.iad2.fedoraproject.org
+++ b/inventory/host_vars/buildhw-x86-05.iad2.fedoraproject.org
@@ -4,7 +4,7 @@ gw: 10.3.169.254
 datacenter: iad2
 eth1_off: true
 eth0_ipv4: 10.3.169.35
-eth0_ipv4_nm: 255.255.255.0
+eth0_ipv4_nm: 24
 eth0_ipv4_gw: 10.3.169.254
 
 nm: 255.255.255.0