diff --git a/data/interfaces/default/opds.html b/data/interfaces/default/opds.html
index 2b16369e..57f71a31 100644
--- a/data/interfaces/default/opds.html
+++ b/data/interfaces/default/opds.html
@@ -29,7 +29,11 @@
         %endif
         <updated>${entry['updated']}</updated>
         <content type="text">${entry['content']}</content>
+        %if entry['rel'] == 'acquisition':
+        <link href="${entry['href']}" rel="${entry['rel']}" type="octet/stream">
+        else:
         <link href="${entry['href']}" rel= "${entry['rel']}" type="application/atom+xml; profile=opds-catalog; kind=${entry['kind']}"/>
+        %endif
         %if 'thumbnail' in entry:
         <link href="${entry['thumbnail']}" type="image/png" rel="http://opds-spec.org/image/thumbnail"/>
         %endif