diff --git a/C4/Biblio.pm b/C4/Biblio.pm
index 04a967da92..572b4580b9 100644
--- a/C4/Biblio.pm
+++ b/C4/Biblio.pm
@@ -30,6 +30,7 @@ use C4::Dates qw/format_date/;
 use C4::Log; # logaction
 use C4::ClassSource;
 use C4::Charset;
+require C4::Heading;
 
 use vars qw($VERSION @ISA @EXPORT);