diff --git a/tests/unit/validators/format-test.js b/tests/unit/validators/format-test.js
index 1845d12..6820a31 100644
--- a/tests/unit/validators/format-test.js
+++ b/tests/unit/validators/format-test.js
@@ -148,6 +148,9 @@ test('phone', function(assert) {
 
   result = validate('(408) 555-1234', options);
   assert.equal(processResult(result), true);
+
+  result = validate('+38765512811', options);
+  assert.equal(processResult(result), true);
 });
 
 test('url', function(assert) {