diff --git a/extension/ast/footnote.go b/extension/ast/footnote.go
index 9bc52d9..27b33c7 100644
--- a/extension/ast/footnote.go
+++ b/extension/ast/footnote.go
@@ -41,6 +41,7 @@ func NewFootnoteLink(index int, ref []byte) *FootnoteLink {
 type FootnoteBackLink struct {
 	gast.BaseInline
 	Index int
+	Ref   []byte
 }
 
 // Dump implements Node.Dump.
@@ -59,9 +60,10 @@ func (n *FootnoteBackLink) Kind() gast.NodeKind {
 }
 
 // NewFootnoteBackLink returns a new FootnoteBackLink node.
-func NewFootnoteBackLink(index int) *FootnoteBackLink {
+func NewFootnoteBackLink(index int, ref []byte) *FootnoteBackLink {
 	return &FootnoteBackLink{
 		Index: index,
+		Ref:   ref,
 	}
 }
 
diff --git a/extension/footnote.go b/extension/footnote.go
index c6ae1f5..972418e 100644
--- a/extension/footnote.go
+++ b/extension/footnote.go
@@ -194,11 +194,12 @@ func (a *footnoteASTTransformer) Transform(node *gast.Document, reader text.Read
 		if fc := container.LastChild(); fc != nil && gast.IsParagraph(fc) {
 			container = fc
 		}
-		index := footnote.(*ast.Footnote).Index
-		if index < 0 {
+		n := footnote.(*ast.Footnote)
+		if n.Index < 0 {
 			list.RemoveChild(list, footnote)
 		} else {
-			container.AppendChild(container, ast.NewFootnoteBackLink(index))
+			backlink := ast.NewFootnoteBackLink(n.Index, n.Ref)
+			container.AppendChild(container, backlink)
 		}
 		footnote = next
 	}