diff --git a/address.go b/address.go
index c8deb27..3770028 100644
--- a/address.go
+++ b/address.go
@@ -7,6 +7,7 @@ import (
 
 	"github.com/mdlayher/netlink"
 	"github.com/mdlayher/netlink/nlenc"
+	"syscall"
 )
 
 var (
@@ -100,15 +101,15 @@ type AddressService struct {
 
 // Constants used to request information from rtnetlink addresses.
 const (
-	rtmNewAddress = 20
-	rtmDelAddress = 21
-	rtmGetAddress = 22
+	RTM_NEWADDR = syscall.RTM_NEWADDR
+	RTM_DELADDR = syscall.RTM_DELADDR
+	RTM_GETADDR = syscall.RTM_GETADDR
 )
 
 // New creates a new address using the AddressMessage information.
 func (a *AddressService) New(req *AddressMessage) error {
 	flags := netlink.HeaderFlagsRequest
-	_, err := a.c.Send(req, rtmNewAddress, flags)
+	_, err := a.c.Send(req, RTM_NEWADDR, flags)
 	if err != nil {
 		return err
 	}
@@ -126,7 +127,7 @@ func (a *AddressService) Delete(address net.IP, index uint32) error {
 	}
 
 	flags := netlink.HeaderFlagsRequest
-	_, err := a.c.Send(req, rtmDelAddress, flags)
+	_, err := a.c.Send(req, RTM_DELADDR, flags)
 	if err != nil {
 		return err
 	}
@@ -139,7 +140,7 @@ func (a *AddressService) List() ([]AddressMessage, error) {
 	req := &AddressMessage{}
 
 	flags := netlink.HeaderFlagsRequest | netlink.HeaderFlagsDump
-	msgs, err := a.c.Execute(req, rtmGetAddress, flags)
+	msgs, err := a.c.Execute(req, RTM_GETADDR, flags)
 	if err != nil {
 		return nil, err
 	}
diff --git a/conn.go b/conn.go
index fb5a2ea..3d92ba3 100644
--- a/conn.go
+++ b/conn.go
@@ -104,10 +104,12 @@ func messageUnmarshall(msgs []netlink.Message) ([]Message, []netlink.Message, er
 		var m Message
 		switch nm.Header.Type {
 		case RTM_GETLINK: fallthrough
+		case RTM_NEWLINK: fallthrough
 		case RTM_DELLINK:
 			m = &LinkMessage{}
-		case rtmNewAddress: fallthrough
-		case rtmDelAddress:
+		case RTM_GETADDR: fallthrough
+		case RTM_NEWADDR: fallthrough
+		case RTM_DELADDR:
 			m = &AddressMessage{}
 		default:
 			continue