diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index e154aa44b0..561a9906c4 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -1052,7 +1052,7 @@ function phpbb_own_realpath($path)
 	// @todo If the file exists fine and open_basedir only has one path we should be able to prepend it
 	// because we must be inside that basedir, the question is where...
 	// @internal The slash in is_dir() gets around an open_basedir restriction
-	if (!@file_exists($resolved) || (!is_dir($resolved . '/') && !is_file($resolved)))
+	if (!@file_exists($resolved) || (!@is_dir($resolved . '/') && !is_file($resolved)))
 	{
 		return false;
 	}