diff --git a/inc/roots-cleanup.php b/inc/roots-cleanup.php
index 7ef94b7..c0fb332 100644
--- a/inc/roots-cleanup.php
+++ b/inc/roots-cleanup.php
@@ -83,7 +83,7 @@ function roots_root_relative_url($input) {
       // if full URL is site_url, return a slash for relative root
       'if (isset($matches[0]) && $matches[0] === site_url()) { return "/";' .
       // if domain is equal to site_url, then make URL relative 
-      '} elseif (isset($matches[1]) && strpos($matches[1], site_url()) !== false) { return "$matches[2]";' .
+      '} elseif (isset($matches[0]) && strpos($matches[0], site_url()) !== false) { return $matches[2];' .
       // if domain is not equal to site_url, do not make external link relative
       '} else { return $matches[0]; };'
     ),