diff --git a/Koha/AuthorisedValue.pm b/Koha/AuthorisedValue.pm
index f831e4b75b..5669ab6086 100644
--- a/Koha/AuthorisedValue.pm
+++ b/Koha/AuthorisedValue.pm
@@ -132,6 +132,26 @@ sub is_integer_only {
     return $self->_result->category->is_integer_only;
 }
 
+=head3 to_api
+
+    my $json = $av->to_api;
+
+Overloaded method that returns a JSON representation of the Koha::AuthorisedValue object,
+suitable for API output.
+
+=cut
+
+sub to_api {
+    my ( $self, $params ) = @_;
+
+    my $response  = $self->SUPER::to_api($params);
+    my $overrides = {};
+
+    $overrides->{description} = $self->lib // q{};
+
+    return { %$response, %$overrides };
+}
+
 =head2 Internal methods
 
 =head3 _check_is_integer_only