diff --git a/tests/Unit/MoneyFormatterTest.php b/tests/Unit/MoneyFormatterTest.php
index 2a23e0e..1e3d20a 100644
--- a/tests/Unit/MoneyFormatterTest.php
+++ b/tests/Unit/MoneyFormatterTest.php
@@ -16,7 +16,10 @@ public function setUp()
     /** @test */
     public function canHandleNegativeValues()
     {
-        $this->assertEquals('€ -1.234,56', $this->formatter->format(-123456));
+        $this->assertTrue(in_array($this->formatter->format(-123456), [
+            '€ -1.234,56',
+            '€ 1.234,56-',
+        ]));
     }
 
     /** @test */