diff --git a/Koha/Auth/Identity/Provider.pm b/Koha/Auth/Identity/Provider.pm
index e9dfc2fddb..d617b2449a 100644
--- a/Koha/Auth/Identity/Provider.pm
+++ b/Koha/Auth/Identity/Provider.pm
@@ -62,7 +62,7 @@ sub get_config {
     my ($self) = @_;
 
     return try {
-        return decode_json( $self->config );
+        return decode_json( Encode::encode_utf8( $self->config ) );
     }
     catch {
         Koha::Exceptions::Object::BadValue->throw("Error reading JSON data: $_");
@@ -127,7 +127,7 @@ sub get_mapping {
     my ($self) = @_;
 
     return try {
-        return decode_json( $self->mapping );
+        return decode_json( Encode::encode_utf8( $self->mapping ) );
     }
     catch {
         Koha::Exceptions::Object::BadValue->throw("Error reading JSON data: $_");
diff --git a/t/db_dependent/api/v1/provider.t b/t/db_dependent/api/v1/provider.t
new file mode 100755
index 0000000000..d505fc99d9
--- /dev/null
+++ b/t/db_dependent/api/v1/provider.t
@@ -0,0 +1,66 @@
+#!/usr/bin/env perl
+
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Koha is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Koha; if not, see <http://www.gnu.org/licenses>.
+
+use Modern::Perl;
+
+use Test::More tests => 1;
+use Test::Mojo;
+use t::lib::TestBuilder;
+use t::lib::Mocks;
+
+use JSON qw(encode_json);
+
+use C4::Budgets;
+
+use Koha::Database;
+
+my $schema  = Koha::Database->new->schema;
+my $builder = t::lib::TestBuilder->new();
+
+t::lib::Mocks::mock_preference( 'RESTBasicAuth', 1 );
+
+my $t = Test::Mojo->new('Koha::REST::V1');
+
+subtest 'list() tests' => sub {
+
+    plan tests => 4;
+
+    $schema->storage->txn_begin;
+
+    my $superlibrarian =
+        $builder->build_object( { class => 'Koha::Patrons', value => { flags => 1 } } );
+    my $password = 'thePassword123';
+    $superlibrarian->set_password( { password => $password, skip_validation => 1 } );
+    $superlibrarian->discard_changes;
+
+    my $userid = $superlibrarian->userid;
+
+    $t->get_ok("//$userid:$password@/api/v1/auth/identity_providers")->status_is(200);
+
+    my $provider = $builder->build_object( { class => 'Koha::Auth::Identity::Providers' } );
+
+    $provider->set(
+        {
+            config  => '{"some":"value","and":"élève"}',
+            mapping => '{"some":"value","and":"tréma"}'
+        }
+    )->store;
+
+    $t->get_ok("//$userid:$password@/api/v1/auth/identity_providers")->status_is(200);
+
+    $schema->storage->txn_rollback;
+};