diff --git a/multicodec.go b/multicodec.go
index 82bd90fe923fec802db26ffbd7cf15e1b919a3ea..180328aa5e8d85b7b88d689d5fdd4fca597d0481 100644
--- a/multicodec.go
+++ b/multicodec.go
@@ -4,7 +4,9 @@ import (
 	"io"
 
 	ipld "github.com/ipld/go-ipld-prime"
+	cidlink "github.com/ipld/go-ipld-prime/linking/cid"
 	"github.com/ipld/go-ipld-prime/multicodec"
+	"github.com/ipld/go-ipld-prime/traversal"
 )
 
 var (
@@ -37,3 +39,14 @@ func Decode(na ipld.NodeAssembler, r io.Reader) error {
 func Encode(n ipld.Node, w io.Writer) error {
 	return Marshal(n, w)
 }
+
+// AddSupportToChooser takes an existing node prototype chooser and subs in
+// PBNode for the dag-pb multicodec code.
+func AddSupportToChooser(existing traversal.LinkTargetNodePrototypeChooser) traversal.LinkTargetNodePrototypeChooser {
+	return func(lnk ipld.Link, lnkCtx ipld.LinkContext) (ipld.NodePrototype, error) {
+		if lnk, ok := lnk.(cidlink.Link); ok && lnk.Cid.Prefix().Codec == 0x70 {
+			return Type.PBNode, nil
+		}
+		return existing(lnk, lnkCtx)
+	}
+}