diff --git a/C4/Installer/PerlDependencies.pm b/C4/Installer/PerlDependencies.pm
index 2225463349..c2e61ce684 100644
--- a/C4/Installer/PerlDependencies.pm
+++ b/C4/Installer/PerlDependencies.pm
@@ -617,11 +617,6 @@ our $PERL_DEPS = {
         required   => 0,
         min_ver    => '0.40'
     },
-    'Text::Unaccent' => {
-        'usage'    => 'Core',
-        'required' => '1',
-        'min_ver'  => '1.08',
-    },
     'Test::WWW::Mechanize' => {
         'usage'    => 'Testing suite',
         'required' => '0',
diff --git a/Koha/Patron.pm b/Koha/Patron.pm
index 69cc297652..f78bdff922 100644
--- a/Koha/Patron.pm
+++ b/Koha/Patron.pm
@@ -23,7 +23,7 @@ use Modern::Perl;
 use Carp;
 use List::MoreUtils qw( uniq );
 use JSON qw( to_json );
-use Text::Unaccent qw( unac_string );
+use Unicode::Normalize;
 
 use C4::Accounts;
 use C4::Context;
@@ -1293,14 +1293,14 @@ sub generate_userid {
       $firstname =~ s/[[:digit:][:space:][:blank:][:punct:][:cntrl:]]//g;
       $surname =~ s/[[:digit:][:space:][:blank:][:punct:][:cntrl:]]//g;
       my $userid = lc(($firstname)? "$firstname.$surname" : $surname);
-      $userid = unac_string('utf-8',$userid);
+      $userid = NFKD( $userid );
+      $userid =~ s/\p{NonspacingMark}//g;
       $userid .= $offset unless $offset == 0;
       $self->userid( $userid );
       $offset++;
      } while (! $self->has_valid_userid );
 
      return $self;
-
 }
 
 =head2 Internal methods