diff --git a/common/docker/client.go b/common/docker/client.go
index cb68c94f..381c887d 100644
--- a/common/docker/client.go
+++ b/common/docker/client.go
@@ -231,7 +231,7 @@ func (c *Client) EnsureNetwork(networkName, driver, subnet string, options map[s
 			Name:           networkName,
 			CheckDuplicate: true,
 			Driver:         driver,
-			IPAM: docker.IPAMOptions{
+			IPAM: &docker.IPAMOptions{
 				Driver: driver,
 				Config: []docker.IPAMConfig{{Subnet: subnet}},
 			},
diff --git a/ipam/http_test.go b/ipam/http_test.go
index c371949b..1849ebb8 100644
--- a/ipam/http_test.go
+++ b/ipam/http_test.go
@@ -132,7 +132,7 @@ func TestBadHttp(t *testing.T) {
 	// Verb that's not handled
 	resp, err := doHTTP("HEAD", fmt.Sprintf("http://localhost:%d/ip/%s/%s", port, containerID, testAddr1))
 	require.NoError(t, err)
-	require.Equal(t, http.StatusNotFound, resp.StatusCode, "http response")
+	require.Equal(t, http.StatusMethodNotAllowed, resp.StatusCode, "http response")
 	// Mis-spelled URL
 	resp, err = doHTTP("POST", fmt.Sprintf("http://localhost:%d/xip/%s/", port, containerID))
 	require.NoError(t, err)
diff --git a/plugin/ipam/driver.go b/plugin/ipam/driver.go
index ceb9458b..4057b3d7 100644
--- a/plugin/ipam/driver.go
+++ b/plugin/ipam/driver.go
@@ -110,6 +110,10 @@ func (i *Ipam) ReleaseAddress(poolID string, address net.IP) error {
 	return i.weave.ReleaseIPsFor(address.String())
 }
 
+func (i *Ipam) IsBuiltIn() bool {
+	return false
+}
+
 // Functions required by ipamapi "contract" but not actually used.
 
 func (i *Ipam) DiscoverNew(discoverapi.DiscoveryType, interface{}) error {
diff --git a/prog/weaveutil/plugin_network.go b/prog/weaveutil/plugin_network.go
index f3a4a272..346197f2 100644
--- a/prog/weaveutil/plugin_network.go
+++ b/prog/weaveutil/plugin_network.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/client"
 	docker "github.com/fsouza/go-dockerclient"
 )
@@ -58,7 +59,7 @@ func isDockerPluginEnabled(args []string) error {
 
 	ctx := context.Background()
 
-	plugins, err := c.PluginList(ctx)
+	plugins, err := c.PluginList(ctx, filters.Args{})
 	if err != nil {
 		return err
 	}
diff --git a/test/tls/generate_certs.go b/test/tls/generate_certs.go
index 6e2a1b1d..319384ad 100644
--- a/test/tls/generate_certs.go
+++ b/test/tls/generate_certs.go
@@ -41,15 +41,15 @@ func main() {
 			log.Fatalf("The client key already exists.  Please remove it or specify a different key/cert.")
 		}
 
-		err = cert.GenerateCert(
-			[]string{""},
-			clientCertPath,
-			clientKeyPath,
-			caCertPath,
-			caKeyPath,
-			org,
-			bits,
-		)
+		err = cert.GenerateCert(&cert.Options{
+			Hosts:     []string{""},
+			CertFile:  clientCertPath,
+			KeyFile:   clientKeyPath,
+			CAFile:    caCertPath,
+			CAKeyFile: caKeyPath,
+			Org:       org,
+			Bits:      bits,
+		})
 		if err != nil {
 			log.Fatalf("Error generating client certificate: %s", err)
 		}
@@ -64,15 +64,15 @@ func main() {
 
 		if _, err := os.Stat(serverCertPath); os.IsNotExist(err) {
 			log.Printf("Creating server certificate: %s", serverCertPath)
-			err = cert.GenerateCert(
-				[]string{ip},
-				serverCertPath,
-				serverKeyPath,
-				caCertPath,
-				caKeyPath,
-				org,
-				bits,
-			)
+			err = cert.GenerateCert(&cert.Options{
+				Hosts:     []string{ip},
+				CertFile:  serverCertPath,
+				KeyFile:   serverKeyPath,
+				CAFile:    caCertPath,
+				CAKeyFile: caKeyPath,
+				Org:       org,
+				Bits:      bits,
+			})
 			if err != nil {
 				log.Fatalf("error generating server cert: %s", err)
 			}