diff --git a/lib/ontologies_linked_data/utils/file.rb b/lib/ontologies_linked_data/utils/file.rb
index 02cfae14..56f04120 100644
--- a/lib/ontologies_linked_data/utils/file.rb
+++ b/lib/ontologies_linked_data/utils/file.rb
@@ -110,7 +110,9 @@ def self.download_file(uri, limit = 10)
 
               file_size = res.read_header["content-length"].to_i
               begin
-                filename = res.read_header["content-disposition"].match(/filename=\"(.*)\"/)[1] if filename.nil?
+                content_disposition = res.read_header['content-disposition']
+                filenames = content_disposition.match(/filename=\"(.*)\"/) || content_disposition.match(/filename=(.*)/)
+                filename = filenames[1] if filename.nil?
               rescue
                 filename = LinkedData::Utils::Triples.last_iri_fragment(uri.request_uri) if filename.nil?
               end