diff --git a/opac/opac-detail.pl b/opac/opac-detail.pl
index c2b00b0e26..bf9c22e66b 100755
--- a/opac/opac-detail.pl
+++ b/opac/opac-detail.pl
@@ -60,6 +60,10 @@ $template->param(norequests => $norequests);
 
   ## get notes and subjects from MARC record
 my $marc = C4::Context->preference("marc");
+
+#preformat isbn for amazon content
+$dat->{'isbn'} =~ s|-||g;
+
 my @results = ($dat,);
 if (C4::Boolean::true_p($marc)) {
 	my $dbh = C4::Context->dbh;