--- a/t/3722_user_defined.t
+++ b/t/3722_user_defined.t
@@ -38,7 +38,7 @@ $slist->import_files(
             },
             error_callback => sub {
                 my ( $uuid, $process, $msg ) = @_;
-                is( $msg, 'error',
+                is( substr($msg, 0, 5), 'error',
                     'user_defined caught error injected in queue' );
             },
         );