diff --git a/main.go b/main.go
index 04c9fa3..0b1f84e 100644
--- a/main.go
+++ b/main.go
@@ -42,7 +42,6 @@ type AcquisitionFeed struct {
 
 type CatalogFeed atom.Feed
 
-const catalogType = "application/atom+xml;profile=opds-catalog"
 const acquisitionType = "application/atom+xml;profile=opds-catalog;kind=acquisition"
 const navegationType = "application/atom+xml;profile=opds-catalog;kind=navigation"
 
@@ -130,17 +129,11 @@ func writeCatalogFeed(w io.Writer, u *url.URL) error {
 	}
 
 	for _, fi := range fis {
-		isAcquisition, _ := isAcquisitionFeed(filepath.Join(abs_path, fi.Name()))
-
-		var linkType string
-		if linkType = catalogType; isAcquisition {
-			linkType = acquisitionType
-		}
 		link := atom.Link{
 			Rel:   "subsection",
 			Title: fi.Name(),
 			Href:  filepath.Join(u.EscapedPath(), url.PathEscape(fi.Name())),
-			Type:  linkType,
+			Type:  acquisitionType,
 		}
 		entry := &atom.Entry{
 			ID:        filepath.Join(u.Path, fi.Name()),
@@ -169,7 +162,7 @@ func writeAcquisitionFeed(w io.Writer, u *url.URL) error {
 	feed.Link = []atom.Link{{
 		Rel:  "start",
 		Href: "/",
-		Type: "application/atom+xml;profile=opds-catalog;kind=navigation",
+		Type: navegationType,
 	}}
 
 	abs_path := filepath.Join(dirRoot, u.Path)
@@ -191,6 +184,7 @@ func writeAcquisitionFeed(w io.Writer, u *url.URL) error {
 			rel = "http://opds-spec.org/image/thumbnail"
 		}
 		link := atom.Link{
+			Title: fi.Name(),
 			Rel:  rel,
 			Type: mime_type,
 			Href: filepath.Join(u.EscapedPath(), url.PathEscape(fi.Name())),