diff --git a/internal/vppinit/vppinit.go b/internal/vppinit/vppinit.go
index bca8c33..1694ffd 100644
--- a/internal/vppinit/vppinit.go
+++ b/internal/vppinit/vppinit.go
@@ -252,11 +252,11 @@ func addIPNeighbor(ctx context.Context, vppConn api.Connection, swIfIndex interf
 
 func setMtu(ctx context.Context, vppConn api.Connection, link netlink.Link, swIfIndex interface_types.InterfaceIndex) error {
        now := time.Now()
-       setMtu := &interfaces.HwInterfaceSetMtu{
+       setMtu := &interfaces.SwInterfaceSetMtu{
                SwIfIndex: swIfIndex,
-               Mtu:       uint16(link.Attrs().MTU),
+               Mtu:       []uint32{uint32(link.Attrs().MTU)},
        }
-       _, err := interfaces.NewServiceClient(vppConn).HwInterfaceSetMtu(ctx, setMtu)
+       _, err := interfaces.NewServiceClient(vppConn).SwInterfaceSetMtu(ctx, setMtu)
        if err != nil {
                return err
        }
@@ -264,7 +264,7 @@ func setMtu(ctx context.Context, vppConn api.Connection, link netlink.Link, swIf
                WithField("swIfIndex", setMtu.SwIfIndex).
                WithField("MTU", setMtu.Mtu).
                WithField("duration", time.Since(now)).
-               WithField("vppapi", "HwInterfaceSetMtu").Debug("completed")
+               WithField("vppapi", "SwInterfaceSetMtu").Debug("completed")
        return nil
 }