diff --git a/tests/src/flextype/core/Entries/Fields/ModifiedAtFieldTest.php b/tests/src/flextype/core/Entries/Fields/ModifiedAtFieldTest.php
index 585fe1ee..dd45c2d7 100644
--- a/tests/src/flextype/core/Entries/Fields/ModifiedAtFieldTest.php
+++ b/tests/src/flextype/core/Entries/Fields/ModifiedAtFieldTest.php
@@ -16,5 +16,5 @@ test('ModifiedAtField', function () {
     $modified_at = entries()->fetch('foo')['modified_at'];
 
     $this->assertTrue(strlen($modified_at) > 0);
-    $this->assertTrue((ctype_digit($modified_at) && strtotime(date('Y-m-d H:i:s', $modified_at)) === (int)$modified_at));
+    $this->assertTrue((strtotime(date('Y-m-d H:i:s', $modified_at)) === (int)$modified_at));
 });