diff --git a/Unit_testing/Reporter.php b/Unit_testing/Reporter.php
index 4f866df..5eb0df0 100644
--- a/Unit_testing/Reporter.php
+++ b/Unit_testing/Reporter.php
@@ -45,6 +45,8 @@
 	{
 		if ( $this->verbosity ) vprintf( $statusText . $reportText, $printfArguments );
 	}
+	
+	abstract public function hr();
 }
 
 ?>