diff --git a/cdt/cdt.go b/cdt/cdt.go
index d0e8533..195f58a 100644
--- a/cdt/cdt.go
+++ b/cdt/cdt.go
@@ -52,10 +52,6 @@ func (l *Link) getWasm() *wasm.DictLink {
 	return l.wasm
 }
 
-func toDictLinkWasm(v *Link) *wasm.DictLink {
-	return v.wasm
-}
-
 type Method struct {
 	wasm *wasm.DictMethod
 }
diff --git a/cgraph/cgraph.go b/cgraph/cgraph.go
index 591cb80..6959802 100644
--- a/cgraph/cgraph.go
+++ b/cgraph/cgraph.go
@@ -20,13 +20,6 @@ func toGraph(v *wasm.Graph) *Graph {
 	return &Graph{wasm: v}
 }
 
-func toGraphWasm(v *Graph) *wasm.Graph {
-	if v == nil {
-		return nil
-	}
-	return v.wasm
-}
-
 func (g *Graph) getWasm() *wasm.Graph {
 	if g == nil {
 		return nil
diff --git a/cgraph/link.go b/cgraph/link.go
index 305e860..b3f674a 100644
--- a/cgraph/link.go
+++ b/cgraph/link.go
@@ -16,5 +16,12 @@ func toDictWasm(*cdt.Dict) *wasm.Dict
 //go:linkname toDictLink github.com/goccy/go-graphviz/cdt.toLink
 func toDictLink(*wasm.DictLink) *cdt.Link
 
-//go:linkname toDictLinkWasm github.com/goccy/go-graphviz/cdt.toDictLinkWasm
+//go:linkname toDictLinkWasm github.com/goccy/go-graphviz/cdt.toLinkWasm
 func toDictLinkWasm(*cdt.Link) *wasm.DictLink
+
+func toGraphWasm(v *Graph) *wasm.Graph {
+	if v == nil {
+		return nil
+	}
+	return v.wasm
+}