diff --git a/cmd/build.go b/cmd/build.go
index 3239142..51cb114 100644
--- a/cmd/build.go
+++ b/cmd/build.go
@@ -61,12 +61,16 @@ should be enough for the next successful build).`,
 			panic(err)
 		}
 		root := doc.SelectElement("rdf:RDF")
-		for _, z := range root.FindElements("[link:type]") {
+		for _, z := range root.FindElements("[name()='link:type']") {
 			doc := etree.NewDocument()
-			doc.SetRoot(z.Copy())
+			doc.SetRoot(z.Parent().Copy())
+			if z.Text() != "application/pdf" {
+				continue
+			}
+			fmt.Println(z.Text())
 			fmt.Println("~ ~ ~ ~")
 			fmt.Println(doc.WriteTo(os.Stdout))
-			elm := root.FindElement(fmt.Sprintf("[@rdf:resource='%s']", z.SelectAttr("rdf:about").Value))
+			elm := root.FindElement(fmt.Sprintf("[@rdf:resource='%s']", z.Parent().SelectAttr("rdf:about").Value))
 			doc.SetRoot(elm.Parent().Copy())
 			fmt.Println("+++++")
 			fmt.Println(doc.WriteTo(os.Stdout))