diff --git a/pkg/cloudprovider/openstack/openstack.go b/pkg/cloudprovider/openstack/openstack.go
index b144722bbed..f744b3b100b 100644
--- a/pkg/cloudprovider/openstack/openstack.go
+++ b/pkg/cloudprovider/openstack/openstack.go
@@ -416,9 +416,11 @@ func (lb *LoadBalancer) TCPLoadBalancerExists(name, region string) (bool, error)
 // a list of regions (from config) and query/create loadbalancers in
 // each region.
 
-func (lb *LoadBalancer) CreateTCPLoadBalancer(name, region string, externalIP net.IP, port int, hosts []string) (net.IP, error) {
+func (lb *LoadBalancer) CreateTCPLoadBalancer(name, region string, externalIP net.IP, port int, hosts []string, affinity api.AffinityType) (net.IP, error) {
 	glog.V(2).Infof("CreateTCPLoadBalancer(%v, %v, %v, %v, %v)", name, region, externalIP, port, hosts)
-
+	if affinity != api.AffinityTypeNone {
+		return nil, fmt.Errorf("unsupported load balancer affinity: %v", affinity)
+	}
 	pool, err := pools.Create(lb.network, pools.CreateOpts{
 		Name:     name,
 		Protocol: pools.ProtocolTCP,