diff --git a/tests/Stdlib/Graph/GraphTest.php b/tests/Stdlib/Graph/GraphTest.php
index a8412debb..de5de18b4 100644
--- a/tests/Stdlib/Graph/GraphTest.php
+++ b/tests/Stdlib/Graph/GraphTest.php
@@ -44,7 +44,7 @@ class GraphTest extends \PHPUnit\Framework\TestCase
         self::assertEquals(0, $graph->getNodeConnectivity());
         self::assertEquals(0, $graph->getEdgeConnectivity());
 
-        self::assertEquals(true, $graph->isConnected());
+        self::assertTrue($graph->isConnected());
         self::assertTrue($graph->isBipartite());
         self::assertTrue($graph->isTriangleFree());