diff --git a/Tests/ExecutableFinderTest.php b/Tests/ExecutableFinderTest.php
index 4a6c2c4b..4aadd9b2 100644
--- a/Tests/ExecutableFinderTest.php
+++ b/Tests/ExecutableFinderTest.php
@@ -157,7 +157,7 @@ public function testEmptyDirInPath()
             $finder = new ExecutableFinder();
             $result = $finder->find('executable');
 
-            $this->assertSame('./executable', $result);
+            $this->assertSame(sprintf('.%sexecutable', \DIRECTORY_SEPARATOR), $result);
         } finally {
             unlink('executable');
         }