diff --git a/favicon.php b/favicon.php
index 30a4b07..3c5c2ba 100644
--- a/favicon.php
+++ b/favicon.php
@@ -72,7 +72,8 @@ function getFavicon($urls) {
                     continue;
                 }
                 if(strstr((string) $attribute, 'icon')) {
-                    if(isset($head_tag->attributes()['sizes'])) {
+                    $tmp = $head_tag->attributes();
+                    if(isset($tmp['sizes'])) {
                         $sizes = (string)$head_tag->attributes()['sizes'];
                     }
                     else {