diff --git a/test/UriTest.php b/test/UriTest.php
index 5515fbb80..139332c3d 100644
--- a/test/UriTest.php
+++ b/test/UriTest.php
@@ -1378,6 +1378,6 @@ public function testUriWithEndingColonWithoutPort()
         $uri = new Uri($uriString);
 
         $this->assertSame('www.example.com', $uri->getHost());
-        $this->assertSame(null, $uri->getPort());
+        $this->assertNull($uri->getPort());
     }
 }