diff --git a/C4/Koha.pm b/C4/Koha.pm
index 2493467fff..9894a060cf 100644
--- a/C4/Koha.pm
+++ b/C4/Koha.pm
@@ -823,9 +823,9 @@ sub _isbn_cleanup {
     ) if $isbn;
 }
 
-=head2 NormalizedISBN
+=head2 NormalizeISBN
 
-  my $isbns = NormalizedISBN({
+  my $isbns = NormalizeISBN({
     isbn => $isbn,
     strip_hyphens => [0,1],
     format => ['ISBN-10', 'ISBN-13']
diff --git a/Koha/Util/Normalize.pm b/Koha/Util/Normalize.pm
index 7fe4179506..af913b9743 100644
--- a/Koha/Util/Normalize.pm
+++ b/Koha/Util/Normalize.pm
@@ -18,7 +18,6 @@ package Koha::Util::Normalize;
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 use Modern::Perl;
-use Business::ISBN;
 
 use parent qw( Exporter );