diff --git a/opac/svc/overdrive b/opac/svc/overdrive
index 89d0865dd8..8945fc386d 100755
--- a/opac/svc/overdrive
+++ b/opac/svc/overdrive
@@ -21,8 +21,8 @@
 use Modern::Perl;
 use CGI qw ( -utf8 );
 use JSON qw(encode_json);
-use C4::Auth qw(checkauth);
-use C4::Output;
+use C4::Auth qw( checkauth );
+use C4::Output qw( output_with_http_headers );
 use Koha::Logger;
 use Koha::Patrons;
 use Koha::Library::OverDriveInfos;