diff --git a/test/Unit.php b/test/Unit.php
index 51017dbec2..53c7a895bd 100644
--- a/test/Unit.php
+++ b/test/Unit.php
@@ -1047,7 +1047,10 @@ protected function _hasNetwork($config = array()) {
 		});
 
 		checkdnsrr($config['host'], 'ANY');
-		fopen($url, 'r');
+
+		if ($handle = fopen($url, 'r')) {
+			fclose($handle);
+		}
 
 		restore_error_handler();
 		return !$failed;